$\int_0^{\infty}\left(\frac{1-cos\left(2x\right)}{2}\right)dx$
$\left(9x+7a\right)\left(9x-7a\right)$
$\int\sin\left(3x\right)^7cos\left(3x\right)^2dx$
$\sqrt[3]{\left(3^8\:\cdot\:2\right)^3}$
$\int\left(2x+2\right)\sqrt{2x-1}dx$
$\frac{1+n^3}{1+n}$
$14^2$
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