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How do you 10/(x-3)^4+75/(4*(x-3)^6)-(12-4*x)/(4*(x-3)^4) in partial fractions?

An expression to simplify:

The solution

You have entered [src]
   10          75        12 - 4*x 
-------- + ---------- - ----------
       4            6            4
(x - 3)    4*(x - 3)    4*(x - 3) 
$$- \frac{12 - 4 x}{4 \left(x - 3\right)^{4}} + \left(\frac{75}{4 \left(x - 3\right)^{6}} + \frac{10}{\left(x - 3\right)^{4}}\right)$$
10/(x - 3)^4 + 75/((4*(x - 3)^6)) - (12 - 4*x)/(4*(x - 3)^4)
General simplification [src]
               2        
75 + 4*(-3 + x) *(7 + x)
------------------------
                6       
      4*(-3 + x)        
$$\frac{4 \left(x - 3\right)^{2} \left(x + 7\right) + 75}{4 \left(x - 3\right)^{6}}$$
(75 + 4*(-3 + x)^2*(7 + x))/(4*(-3 + x)^6)
Fraction decomposition [src]
(-3 + x)^(-3) + 10/(-3 + x)^4 + 75/(4*(-3 + x)^6)
$$\frac{1}{\left(x - 3\right)^{3}} + \frac{10}{\left(x - 3\right)^{4}} + \frac{75}{4 \left(x - 3\right)^{6}}$$
    1           10           75    
--------- + --------- + -----------
        3           4             6
(-3 + x)    (-3 + x)    4*(-3 + x) 
Rational denominator [src]
          10                          4 /          6              4\
4*(-3 + x)  *(-12 + 4*x) + 20*(-3 + x) *\8*(-3 + x)  + 15*(-3 + x) /
--------------------------------------------------------------------
                                      14                            
                           16*(-3 + x)                              
$$\frac{4 \left(x - 3\right)^{10} \left(4 x - 12\right) + 20 \left(x - 3\right)^{4} \left(8 \left(x - 3\right)^{6} + 15 \left(x - 3\right)^{4}\right)}{16 \left(x - 3\right)^{14}}$$
(4*(-3 + x)^10*(-12 + 4*x) + 20*(-3 + x)^4*(8*(-3 + x)^6 + 15*(-3 + x)^4))/(16*(-3 + x)^14)
Assemble expression [src]
    10           75         12 - 4*x 
--------- + ----------- - -----------
        4             6             4
(-3 + x)    4*(-3 + x)    4*(-3 + x) 
$$- \frac{12 - 4 x}{4 \left(x - 3\right)^{4}} + \frac{10}{\left(x - 3\right)^{4}} + \frac{75}{4 \left(x - 3\right)^{6}}$$
10/(-3 + x)^4 + 75/(4*(-3 + x)^6) - (12 - 4*x)/(4*(-3 + x)^4)
Expand expression [src]
   10          75        12 - 4*x 
-------- + ---------- - ----------
       4            6            4
(x - 3)    4*(x - 3)    4*(x - 3) 
$$- \frac{12 - 4 x}{4 \left(x - 3\right)^{4}} + \frac{10}{\left(x - 3\right)^{4}} + \frac{75}{4 \left(x - 3\right)^{6}}$$
10/(x - 3)^4 + 75/(4*(x - 3)^6) - (12 - 4*x)/(4*(x - 3)^4)
Combining rational expressions [src]
                2             2        
75 + 40*(-3 + x)  - 4*(-3 + x) *(3 - x)
---------------------------------------
                        6              
              4*(-3 + x)               
$$\frac{- 4 \left(3 - x\right) \left(x - 3\right)^{2} + 40 \left(x - 3\right)^{2} + 75}{4 \left(x - 3\right)^{6}}$$
(75 + 40*(-3 + x)^2 - 4*(-3 + x)^2*(3 - x))/(4*(-3 + x)^6)
Common denominator [src]
                                 2      3                
                327 - 132*x + 4*x  + 4*x                 
---------------------------------------------------------
                      3       5      6        4         2
2916 - 5832*x - 2160*x  - 72*x  + 4*x  + 540*x  + 4860*x 
$$\frac{4 x^{3} + 4 x^{2} - 132 x + 327}{4 x^{6} - 72 x^{5} + 540 x^{4} - 2160 x^{3} + 4860 x^{2} - 5832 x + 2916}$$
(327 - 132*x + 4*x^2 + 4*x^3)/(2916 - 5832*x - 2160*x^3 - 72*x^5 + 4*x^6 + 540*x^4 + 4860*x^2)
Powers [src]
    10           75         12 - 4*x 
--------- + ----------- - -----------
        4             6             4
(-3 + x)    4*(-3 + x)    4*(-3 + x) 
$$- \frac{12 - 4 x}{4 \left(x - 3\right)^{4}} + \frac{10}{\left(x - 3\right)^{4}} + \frac{75}{4 \left(x - 3\right)^{6}}$$
    1           10           75    
--------- + --------- + -----------
        3           4             6
(-3 + x)    (-3 + x)    4*(-3 + x) 
$$\frac{1}{\left(x - 3\right)^{3}} + \frac{10}{\left(x - 3\right)^{4}} + \frac{75}{4 \left(x - 3\right)^{6}}$$
(-3 + x)^(-3) + 10/(-3 + x)^4 + 75/(4*(-3 + x)^6)
Trigonometric part [src]
    10           75         12 - 4*x 
--------- + ----------- - -----------
        4             6             4
(-3 + x)    4*(-3 + x)    4*(-3 + x) 
$$- \frac{12 - 4 x}{4 \left(x - 3\right)^{4}} + \frac{10}{\left(x - 3\right)^{4}} + \frac{75}{4 \left(x - 3\right)^{6}}$$
10/(-3 + x)^4 + 75/(4*(-3 + x)^6) - (12 - 4*x)/(4*(-3 + x)^4)
Combinatorics [src]
                 2      3
327 - 132*x + 4*x  + 4*x 
-------------------------
                 6       
       4*(-3 + x)        
$$\frac{4 x^{3} + 4 x^{2} - 132 x + 327}{4 \left(x - 3\right)^{6}}$$
(327 - 132*x + 4*x^2 + 4*x^3)/(4*(-3 + x)^6)
Numerical answer [src]
0.123456790123457/(-1 + 0.333333333333333*x)^4 + 0.0257201646090535/(-1 + 0.333333333333333*x)^6 - 0.00308641975308642*(12.0 - 4.0*x)/(-1 + 0.333333333333333*x)^4
0.123456790123457/(-1 + 0.333333333333333*x)^4 + 0.0257201646090535/(-1 + 0.333333333333333*x)^6 - 0.00308641975308642*(12.0 - 4.0*x)/(-1 + 0.333333333333333*x)^4