$\left(w-7\right)\left(w+8\right)$

$2x-2\sqrt{3x^2}+2$

$\lim_{x\to0}\left(\frac{e^{x^2}}{\ln\left(\frac{1}{x}\right)}\right)$

$8x<x+56$

$\int\left(\frac{\sqrt{25x^2-1}}{x^2}\right)dx$

$\left(+4\right)-\left(-7\right)$

$( n ^ { 2 } - 1 ) ( n ^ { 2 } + 7 ) ( n ^ { 4 } - 6 x ^ { 2 } - 7 )$