$2x^2-2x+5$
$4x^2+36x^4-6x^3$
$y=2e^{-2x}+\frac{1}{3e^x}$
$\frac{3x^2}{x^2+2}$
$\sin\:^2\left(x\right)\cdot\:\:cos\:\left(x\right)=4\:\cdot\:\:cos\:\left(x\right)$
$\int_0^2\left(\pi\left(16-8x^2+x^4\right)\right)dx$
$\lim_{x\to1}\left(\frac{x^4-6x^2-8x-3}{x^4+2x^3+2x-1}\right)$
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