$\int\frac{\left(x+4\right)^2}{x^4}dx$

$2\left(a+b\right)+x\left(a+b\right)$

$\lim_{x\to\infty}\left(\frac{6x^2+x+4}{2x^2-4x+5}\right)$

$\left(9v^3\right)\left(12v^{10}\right)$

$3.025\:+\:0.0126$

$( x ^ { 2 } + x - 2 ) ( - x + 3 )$

$\frac{d}{dx}\frac{1}{\frac{3}{4}}$