Question

which of the following is equal to the rational expression when x=-1 or -7? (x+1)(x-1)/(x+7)(x+1)

a. x+7/x-1
b. x-1/x+7
c. x+1/x+7

Answer 1

I don’t know if I’m right but I think it’s a

Answer 2

Answer:

B

Step-by-step explanation: