$\sqrt[3]{128y^4}z^5$
$-4\cot\left(x\right)\csc\left(x\right)+7sec\left(x\right)\tan\left(x\right)$
$\frac{1}{2}k\left(4-8k+20k^2\right)$
$\left(\frac{1}{2}n-\frac{1}{3}z\right)^2$
$5-2y+3$
$4x+3=\:-x-37$
$\frac{d^2}{dx^2}\left(x^2y-3x=8\right)$
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