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Derivative of (6x+2)^2*ln(2x+7)

Function f() - derivative -N order at the point
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The solution

You have entered [src]
         2             
(6*x + 2) *log(2*x + 7)
$$\left(6 x + 2\right)^{2} \log{\left(2 x + 7 \right)}$$
(6*x + 2)^2*log(2*x + 7)
Detail solution
  1. Apply the product rule:

    ; 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. The derivative of a constant times a function is the constant times the derivative of the function.

          1. Apply the power rule: goes to

          So, the result is:

        2. The derivative of the constant is zero.

        The result is:

      The result of the chain rule is:

    ; to find :

    1. Let .

    2. The derivative of is .

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

      1. Differentiate term by term:

        1. The derivative of a constant times a function is the constant times the derivative of the function.

          1. Apply the power rule: goes to

          So, the result is:

        2. The derivative of the constant is zero.

        The result is:

      The result of the chain rule is:

    The result is:

  2. Now simplify:


The answer is:

The graph
The first derivative [src]
                                      2
                           2*(6*x + 2) 
(24 + 72*x)*log(2*x + 7) + ------------
                             2*x + 7   
$$\left(72 x + 24\right) \log{\left(2 x + 7 \right)} + \frac{2 \left(6 x + 2\right)^{2}}{2 x + 7}$$
The second derivative [src]
  /                            2               \
  |                 2*(1 + 3*x)    12*(1 + 3*x)|
8*|9*log(7 + 2*x) - ------------ + ------------|
  |                           2      7 + 2*x   |
  \                  (7 + 2*x)                 /
$$8 \left(9 \log{\left(2 x + 7 \right)} + \frac{12 \left(3 x + 1\right)}{2 x + 7} - \frac{2 \left(3 x + 1\right)^{2}}{\left(2 x + 7\right)^{2}}\right)$$
The third derivative [src]
   /                               2\
   |     18*(1 + 3*x)   4*(1 + 3*x) |
16*|27 - ------------ + ------------|
   |       7 + 2*x                2 |
   \                     (7 + 2*x)  /
-------------------------------------
               7 + 2*x               
$$\frac{16 \left(27 - \frac{18 \left(3 x + 1\right)}{2 x + 7} + \frac{4 \left(3 x + 1\right)^{2}}{\left(2 x + 7\right)^{2}}\right)}{2 x + 7}$$