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I need to find constants A and B that work.

 

 Sep 2, 2020
 #1
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Rewrite the R side to the common denominator   (x)(x-1)

{A(x-1) + B (x) ] / (x(x-1)   now equate the numerators from both sides

 

A(x-1) + B (x) = x+3    

Ax -A  + Bx = x+3

    Obviously   A = -3

    then

-3x + Bx = x   so B = 4

 Sep 3, 2020

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