$\int\:\left(\frac{\left(1+x\right)^2}{1+x^2}\right)dx$
$-8-12g+7g+5$
$\left(2+1\right)^n$
$\csc\:^2\left(\theta\:\right)-9csc\left(\theta\:\right)+20=0$
$-6x-8x^2+5+4x^3-x-3$
$sin^2\left(x\right)=\left(sin\left(2x\right)\right)^2$
$3mn^2\left(2m^2-n^3\right)$
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