$\lim_{x\to\infty}\left(\frac{2x+2}{x-2}\right)$
$\int2z\sin\left(z\right)dz$
$\lim_{x\to2}\:\left(x^2-5x-2\right)$
$\int\frac{1}{\sqrt{9-4s^2}}dx$
$\int\left(\frac{7sin\left(\sqrt{x}\right)}{\sqrt{x}}\right)dx$
$30x+6x-5x-3x+5x$
$\left(8x^3-6\right)\left(8x^3+2\right)$
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