$-2y^2+7y\:-\:6$
$\int_0^t\left(-1.8\sin\left(kt\right)\right)dt$
$\int\frac{2x}{x^3-9x^2+23x-15}dx$
$9m^2+12mn$
$\int z\:\cos^22z\:dz$
$\cos\left(a\right)\left(\sin^2\left(a\right)\right)$
$5a+2a^{33}$
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