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Which of the following is equal to the rational expression when x = 5 or -3? x^2+x-6/x^2-2x-15
A. X-6/x-5
B. X+3/c-5
C. X-2/X+3
D. X-2/x-5

Respuesta :

Answer:

C. X-2/X+3

Step-by-step explanation:

(4/x) + (4/y) / (16/x2y2) is where we start. I will factor out

1/(16/x2y2).

 

(1/(16/x2y2)) (64xy2 + 4/y) = (x2y2/16)(64xy2 + 4/y)

 

I need to factor out a 4/y from there.

 

(x2y/4)(16xy + 1) = x2y (16xy + 1) / 4

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