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Derivative of cbrt((x-1)(x+2)^2)

Function f() - derivative -N order at the point
v

The graph:

from to

Piecewise:

The solution

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3 /                2 
\/  (x - 1)*(x + 2)  
$$\sqrt[3]{\left(x - 1\right) \left(x + 2\right)^{2}}$$
((x - 1)*(x + 2)^2)^(1/3)
Detail solution
  1. Let .

  2. Apply the power rule: goes to

  3. Then, apply the chain rule. Multiply by :

    1. Apply the product rule:

      ; to find :

      1. Differentiate term by term:

        1. Apply the power rule: goes to

        2. The derivative of the constant is zero.

        The result is:

      ; to find :

      1. Let .

      2. Apply the power rule: goes to

      3. Then, apply the chain rule. Multiply by :

        1. Differentiate term by term:

          1. Apply the power rule: goes to

          2. The derivative of the constant is zero.

          The result is:

        The result of the chain rule is:

      The result is:

    The result of the chain rule is:

  4. Now simplify:


The answer is:

The graph
The first derivative [src]
                     /       2                    \
3 _______        2/3 |(x + 2)    (4 + 2*x)*(x - 1)|
\/ x - 1 *|x + 2|   *|-------- + -----------------|
                     \   3               3        /
---------------------------------------------------
                                 2                 
                  (x - 1)*(x + 2)                  
$$\frac{\sqrt[3]{x - 1} \left|{x + 2}\right|^{\frac{2}{3}} \left(\frac{\left(x - 1\right) \left(2 x + 4\right)}{3} + \frac{\left(x + 2\right)^{2}}{3}\right)}{\left(x - 1\right) \left(x + 2\right)^{2}}$$
The second derivative [src]
                   /        2/3     3 ________            \                                             
                   | |2 + x|      2*\/ -1 + x *sign(2 + x)|                                             
                 x*|----------- + ------------------------|                                             
           2/3     |        2/3         3 _________       |                 2/3              2/3        
  x*|2 + x|        \(-1 + x)            \/ |2 + x|        /      2*x*|2 + x|        2*|2 + x|   *(1 + x)
- ------------ + ------------------------------------------ - ------------------- + --------------------
          5/3                    3*(-1 + x)                           2/3                   2/3         
  (-1 + x)                                                    (-1 + x)   *(2 + x)   (-1 + x)   *(2 + x) 
--------------------------------------------------------------------------------------------------------
                                                 2 + x                                                  
$$\frac{\frac{x \left(\frac{2 \sqrt[3]{x - 1} \operatorname{sign}{\left(x + 2 \right)}}{\sqrt[3]{\left|{x + 2}\right|}} + \frac{\left|{x + 2}\right|^{\frac{2}{3}}}{\left(x - 1\right)^{\frac{2}{3}}}\right)}{3 \left(x - 1\right)} - \frac{2 x \left|{x + 2}\right|^{\frac{2}{3}}}{\left(x - 1\right)^{\frac{2}{3}} \left(x + 2\right)} - \frac{x \left|{x + 2}\right|^{\frac{2}{3}}}{\left(x - 1\right)^{\frac{5}{3}}} + \frac{2 \left(x + 1\right) \left|{x + 2}\right|^{\frac{2}{3}}}{\left(x - 1\right)^{\frac{2}{3}} \left(x + 2\right)}}{x + 2}$$
3-я производная [src]
                        /        2/3     3 ________            \       /          2/3   3 ________     2                                      3 ________                  \                                                                                              /        2/3     3 ________            \                                         /        2/3     3 ________            \                                                                                                
                        | |2 + x|      2*\/ -1 + x *sign(2 + x)|       |   |2 + x|      \/ -1 + x *sign (2 + x)        2*sign(2 + x)        6*\/ -1 + x *DiracDelta(2 + x)|                                                                                              | |2 + x|      2*\/ -1 + x *sign(2 + x)|                                         | |2 + x|      2*\/ -1 + x *sign(2 + x)|                                                                                                
                      x*|----------- + ------------------------|   2*x*|- ----------- - ----------------------- + ----------------------- + ------------------------------|                                                                                          2*x*|----------- + ------------------------|                               2*(1 + x)*|----------- + ------------------------|                                                                                                
             2/3        |        2/3         3 _________       |       |          5/3                 4/3                 2/3 3 _________            3 _________          |              2/3            2/3                         2/3                2/3               |        2/3         3 _________       |                                         |        2/3         3 _________       |                  2/3                                                                           
    2*|2 + x|           \(-1 + x)            \/ |2 + x|        /       \  (-1 + x)             |2 + x|            (-1 + x)   *\/ |2 + x|             \/ |2 + x|           /   5*x*|2 + x|      8*|2 + x|   *(1 + x)      6*x*|2 + x|         10*|2 + x|   *(1 + x)       \(-1 + x)            \/ |2 + x|        /        2*x*sign(2 + x)                  \(-1 + x)            \/ |2 + x|        /      10*x*|2 + x|                  4*x*sign(2 + x)                  4*(1 + x)*sign(2 + x)      
------------------- - ------------------------------------------ + -------------------------------------------------------------------------------------------------------- + -------------- - -------------------- + -------------------- - --------------------- - -------------------------------------------- - ------------------------- + -------------------------------------------------- + --------------------- - --------------------------------- + ---------------------------------
        2/3                                    2                                                                  9*(-1 + x)                                                            8/3            2/3        2           2/3        2             5/3                        3*(-1 + x)*(2 + x)                          5/3 3 _________                   3*(-1 + x)*(2 + x)                             5/3                     2/3         3 _________             2/3         3 _________
(-1 + x)   *(2 + x)                  3*(-1 + x)                                                                                                                               3*(-1 + x)       (-1 + x)   *(2 + x)    (-1 + x)   *(2 + x)    3*(-1 + x)   *(2 + x)                                                  3*(-1 + x)   *\/ |2 + x|                                                         3*(-1 + x)   *(2 + x)   3*(-1 + x)   *(2 + x)*\/ |2 + x|    3*(-1 + x)   *(2 + x)*\/ |2 + x| 
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                                                                                                                                                                                              2 + x                                                                                                                                                                                                                                               
$$\frac{\frac{2 x \left(\frac{6 \sqrt[3]{x - 1} \delta\left(x + 2\right)}{\sqrt[3]{\left|{x + 2}\right|}} - \frac{\sqrt[3]{x - 1} \operatorname{sign}^{2}{\left(x + 2 \right)}}{\left|{x + 2}\right|^{\frac{4}{3}}} + \frac{2 \operatorname{sign}{\left(x + 2 \right)}}{\left(x - 1\right)^{\frac{2}{3}} \sqrt[3]{\left|{x + 2}\right|}} - \frac{\left|{x + 2}\right|^{\frac{2}{3}}}{\left(x - 1\right)^{\frac{5}{3}}}\right)}{9 \left(x - 1\right)} - \frac{2 x \left(\frac{2 \sqrt[3]{x - 1} \operatorname{sign}{\left(x + 2 \right)}}{\sqrt[3]{\left|{x + 2}\right|}} + \frac{\left|{x + 2}\right|^{\frac{2}{3}}}{\left(x - 1\right)^{\frac{2}{3}}}\right)}{3 \left(x - 1\right) \left(x + 2\right)} - \frac{x \left(\frac{2 \sqrt[3]{x - 1} \operatorname{sign}{\left(x + 2 \right)}}{\sqrt[3]{\left|{x + 2}\right|}} + \frac{\left|{x + 2}\right|^{\frac{2}{3}}}{\left(x - 1\right)^{\frac{2}{3}}}\right)}{3 \left(x - 1\right)^{2}} - \frac{4 x \operatorname{sign}{\left(x + 2 \right)}}{3 \left(x - 1\right)^{\frac{2}{3}} \left(x + 2\right) \sqrt[3]{\left|{x + 2}\right|}} + \frac{6 x \left|{x + 2}\right|^{\frac{2}{3}}}{\left(x - 1\right)^{\frac{2}{3}} \left(x + 2\right)^{2}} - \frac{2 x \operatorname{sign}{\left(x + 2 \right)}}{3 \left(x - 1\right)^{\frac{5}{3}} \sqrt[3]{\left|{x + 2}\right|}} + \frac{10 x \left|{x + 2}\right|^{\frac{2}{3}}}{3 \left(x - 1\right)^{\frac{5}{3}} \left(x + 2\right)} + \frac{5 x \left|{x + 2}\right|^{\frac{2}{3}}}{3 \left(x - 1\right)^{\frac{8}{3}}} + \frac{2 \left(x + 1\right) \left(\frac{2 \sqrt[3]{x - 1} \operatorname{sign}{\left(x + 2 \right)}}{\sqrt[3]{\left|{x + 2}\right|}} + \frac{\left|{x + 2}\right|^{\frac{2}{3}}}{\left(x - 1\right)^{\frac{2}{3}}}\right)}{3 \left(x - 1\right) \left(x + 2\right)} + \frac{4 \left(x + 1\right) \operatorname{sign}{\left(x + 2 \right)}}{3 \left(x - 1\right)^{\frac{2}{3}} \left(x + 2\right) \sqrt[3]{\left|{x + 2}\right|}} - \frac{8 \left(x + 1\right) \left|{x + 2}\right|^{\frac{2}{3}}}{\left(x - 1\right)^{\frac{2}{3}} \left(x + 2\right)^{2}} + \frac{2 \left|{x + 2}\right|^{\frac{2}{3}}}{\left(x - 1\right)^{\frac{2}{3}} \left(x + 2\right)} - \frac{10 \left(x + 1\right) \left|{x + 2}\right|^{\frac{2}{3}}}{3 \left(x - 1\right)^{\frac{5}{3}} \left(x + 2\right)}}{x + 2}$$
The third derivative [src]
                        /        2/3     3 ________            \       /          2/3   3 ________     2                                      3 ________                  \                                                                                              /        2/3     3 ________            \                                         /        2/3     3 ________            \                                                                                                
                        | |2 + x|      2*\/ -1 + x *sign(2 + x)|       |   |2 + x|      \/ -1 + x *sign (2 + x)        2*sign(2 + x)        6*\/ -1 + x *DiracDelta(2 + x)|                                                                                              | |2 + x|      2*\/ -1 + x *sign(2 + x)|                                         | |2 + x|      2*\/ -1 + x *sign(2 + x)|                                                                                                
                      x*|----------- + ------------------------|   2*x*|- ----------- - ----------------------- + ----------------------- + ------------------------------|                                                                                          2*x*|----------- + ------------------------|                               2*(1 + x)*|----------- + ------------------------|                                                                                                
             2/3        |        2/3         3 _________       |       |          5/3                 4/3                 2/3 3 _________            3 _________          |              2/3            2/3                         2/3                2/3               |        2/3         3 _________       |                                         |        2/3         3 _________       |                  2/3                                                                           
    2*|2 + x|           \(-1 + x)            \/ |2 + x|        /       \  (-1 + x)             |2 + x|            (-1 + x)   *\/ |2 + x|             \/ |2 + x|           /   5*x*|2 + x|      8*|2 + x|   *(1 + x)      6*x*|2 + x|         10*|2 + x|   *(1 + x)       \(-1 + x)            \/ |2 + x|        /        2*x*sign(2 + x)                  \(-1 + x)            \/ |2 + x|        /      10*x*|2 + x|                  4*x*sign(2 + x)                  4*(1 + x)*sign(2 + x)      
------------------- - ------------------------------------------ + -------------------------------------------------------------------------------------------------------- + -------------- - -------------------- + -------------------- - --------------------- - -------------------------------------------- - ------------------------- + -------------------------------------------------- + --------------------- - --------------------------------- + ---------------------------------
        2/3                                    2                                                                  9*(-1 + x)                                                            8/3            2/3        2           2/3        2             5/3                        3*(-1 + x)*(2 + x)                          5/3 3 _________                   3*(-1 + x)*(2 + x)                             5/3                     2/3         3 _________             2/3         3 _________
(-1 + x)   *(2 + x)                  3*(-1 + x)                                                                                                                               3*(-1 + x)       (-1 + x)   *(2 + x)    (-1 + x)   *(2 + x)    3*(-1 + x)   *(2 + x)                                                  3*(-1 + x)   *\/ |2 + x|                                                         3*(-1 + x)   *(2 + x)   3*(-1 + x)   *(2 + x)*\/ |2 + x|    3*(-1 + x)   *(2 + x)*\/ |2 + x| 
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                                                                                                                                                                                              2 + x                                                                                                                                                                                                                                               
$$\frac{\frac{2 x \left(\frac{6 \sqrt[3]{x - 1} \delta\left(x + 2\right)}{\sqrt[3]{\left|{x + 2}\right|}} - \frac{\sqrt[3]{x - 1} \operatorname{sign}^{2}{\left(x + 2 \right)}}{\left|{x + 2}\right|^{\frac{4}{3}}} + \frac{2 \operatorname{sign}{\left(x + 2 \right)}}{\left(x - 1\right)^{\frac{2}{3}} \sqrt[3]{\left|{x + 2}\right|}} - \frac{\left|{x + 2}\right|^{\frac{2}{3}}}{\left(x - 1\right)^{\frac{5}{3}}}\right)}{9 \left(x - 1\right)} - \frac{2 x \left(\frac{2 \sqrt[3]{x - 1} \operatorname{sign}{\left(x + 2 \right)}}{\sqrt[3]{\left|{x + 2}\right|}} + \frac{\left|{x + 2}\right|^{\frac{2}{3}}}{\left(x - 1\right)^{\frac{2}{3}}}\right)}{3 \left(x - 1\right) \left(x + 2\right)} - \frac{x \left(\frac{2 \sqrt[3]{x - 1} \operatorname{sign}{\left(x + 2 \right)}}{\sqrt[3]{\left|{x + 2}\right|}} + \frac{\left|{x + 2}\right|^{\frac{2}{3}}}{\left(x - 1\right)^{\frac{2}{3}}}\right)}{3 \left(x - 1\right)^{2}} - \frac{4 x \operatorname{sign}{\left(x + 2 \right)}}{3 \left(x - 1\right)^{\frac{2}{3}} \left(x + 2\right) \sqrt[3]{\left|{x + 2}\right|}} + \frac{6 x \left|{x + 2}\right|^{\frac{2}{3}}}{\left(x - 1\right)^{\frac{2}{3}} \left(x + 2\right)^{2}} - \frac{2 x \operatorname{sign}{\left(x + 2 \right)}}{3 \left(x - 1\right)^{\frac{5}{3}} \sqrt[3]{\left|{x + 2}\right|}} + \frac{10 x \left|{x + 2}\right|^{\frac{2}{3}}}{3 \left(x - 1\right)^{\frac{5}{3}} \left(x + 2\right)} + \frac{5 x \left|{x + 2}\right|^{\frac{2}{3}}}{3 \left(x - 1\right)^{\frac{8}{3}}} + \frac{2 \left(x + 1\right) \left(\frac{2 \sqrt[3]{x - 1} \operatorname{sign}{\left(x + 2 \right)}}{\sqrt[3]{\left|{x + 2}\right|}} + \frac{\left|{x + 2}\right|^{\frac{2}{3}}}{\left(x - 1\right)^{\frac{2}{3}}}\right)}{3 \left(x - 1\right) \left(x + 2\right)} + \frac{4 \left(x + 1\right) \operatorname{sign}{\left(x + 2 \right)}}{3 \left(x - 1\right)^{\frac{2}{3}} \left(x + 2\right) \sqrt[3]{\left|{x + 2}\right|}} - \frac{8 \left(x + 1\right) \left|{x + 2}\right|^{\frac{2}{3}}}{\left(x - 1\right)^{\frac{2}{3}} \left(x + 2\right)^{2}} + \frac{2 \left|{x + 2}\right|^{\frac{2}{3}}}{\left(x - 1\right)^{\frac{2}{3}} \left(x + 2\right)} - \frac{10 \left(x + 1\right) \left|{x + 2}\right|^{\frac{2}{3}}}{3 \left(x - 1\right)^{\frac{5}{3}} \left(x + 2\right)}}{x + 2}$$