$am^3-3m^2-am+3$
$\left(22-1\right)\left(.25\right)\:+\left(0.5^2\right)\left(1.96^2\right)$
$\frac{\int\cos\left(x\right)-\sin\left(x\right)}{\cos\left(x\right)}dx$
$\frac{r}{14}\:+\:199\:=\:225$
$3\:sin^2y\:-\:8\:cos\:y$
$b^2+8b-9$
$\left(300\cdot2^1\right)$
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