$\left(\frac{4}{5}x^{2\:}-\:\frac{2}{3}xy\:+\:\frac{5}{2}\right)\left(2x^2\:+\:xy\:-\:1\right)$
$\int_0^{2\pi}\left(sin\left(x\right)\right)dx$
$\left(x^2+3\right)^{2\:}e^{3x}$
$r^2-22r$
$8xy-11x^2+2xy^3$
$\left(3x^4+7x^3+9x^2-x-6\right)$
$150+60$
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