$\int\left(\frac{-b}{x^2}\right)dx$

$\left(\frac{4}{x}\right)\left(x^4\right)$

$6v^2\:+\:66v\:+\:60$

$7^{8\:}x\:7^4$

$\lim_{x\to\infty}\left(tan\left(x\pi\right)+xsec\left(x\pi\right)^2\right)$

$\left(4x^3-10x^2+5x^2+5x+8\right)+\left(12x^2-9x-1\right)$

$\frac{x^3-x^2+2x+10}{x^2-8}$