$\left(x+3y-4z\right)\left(x-y+z\right)$
$\int10x\cdot e^{-x}dx$
$4\left(x^2-x+2\right)-5\left(x^2-2x+1\right)$
$8z+3xy+12z$
$\sqrt[5]{a^8x\:b^{11}x\:c^{10}}$
$2x^2-8x+7$
$7a^{-5}b^3$
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