$365+284+791$
$12x^2y^3+15xy^2$
$\lim_{x\to0}\left(\frac{tan\left(2x\right)-sin\left(2x\right)}{x^2}\right)$
$\left(b^2+1\right)^3$
$x^2-20x+51=0$
$6a\left(m-n\right)-3b\left(m-n\right)-3m+3n$
$tan^2\:-\:sec^2\theta\:\:=-1$
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