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

$\dfrac{3x-3}{x^2-1}*\dfrac{(x+2)(x+1)}{x-1}=\dfrac{3(x-1)}{x-1}*\dfrac{(x+2)(x+1)}{(x-1)(x+1)}\\=\dfrac{3(x+2)}{x+1}$