Question

Multiply and simplify.
3x-3/x^2-1* (x+2)(x+1)/x-1

Answer 1

Hello,

If x≠1 and x≠-1 then


`(3x-3)/(x^2-1)*((x+2)(x+1))/(x-1)=(3(x-1))/(x-1)*((x+2)(x+1))/((x-1)(x+1))\\=(3(x+2))/(x+1)`