Question

If x≠-1,x≠1 or x≠3, then what is (x^2-x)/(2x-6)*(x^2-2x-3)/(x^2-1) ?

Answer 1

can u factor x^2-2x-3 ?

Answer 2

yeah

(x+1)(x-3)

Answer 3

so, x^2-x=x(x-1)
x^2-1=(x+1)(x-1)
now just substitute these factors and see what cancels.