Question

2x^2-11x-21/(x^2+x-56)(x+1)

Answer 1

$\frac{2x {}^{2} - 11x - 21}{(x {}^{2} + x - 56)(x + 1) } \\ \\ \frac{2x {}^{2} - 11x - 2}{x {}^{3} + x {}^{2} + x {}^{2} + x - 56x - 56} \\ \\ \frac{2x {}^{2} - 11x - 2}{x {}^{3} + 2x {}^{2} - 55x - 56 }$