Question

simplify.
(25x²-25)/(1-x)

Answer 1

take common number 25 from numerator.
x^2-1=(x+1)(x-1)
so u get 25*(x+1)(x-1)/(1-x)=-25(x+1)

Answer 2

thank you so much. I was getting stuck at the x^2-1

Answer 3

;)