Question

what is the simplified form of (3x^2/x^2-1) / (9x / x^2+2x+1)

Answer 1

\[{3x^2 \over x^2-1} \div {9x \over x^2+2x+1}\]\[{3x^2 \over (x+1)(x-1)} \div {9x \over (x+1)(x+1)}\] \[{3x^2(x+1) \over 9x(x-1)} \] \[x(x+1) \over 3(x-1)\]