$x^2-2x-12>0$

$\lim_{x\to1}\left(\frac{\tan\left(x\right)}{\tan\left(3x\right)}\right)$

$\int_0^{\pi}\left(\sin^4\left(x\right)\right)dx$

$\left(5q\:+\:10r\right)\left(5q\:-\:10r\right)\:$

$\left(7x-11y^4\right)\left(7x+11y^4\right)$

$\lim_{x\to0}\left(\left(\frac{1}{3x^{\frac{2}{3}}}\right)a^{\frac{1}{3}}y^{\frac{2}{3}}\right)$

$4-\csc^2\left(x\right)=3-\cot^2\left(x\right)$