$20x=20x+200$
$\frac{x^3+3x^2+3x+1}{x}$
$10\left(8\right)\:-2\left(2\right)$
$3x-2\cdot5x$
$\left|\left(-4\right)^3\right|^2\::\:\left(4\right)^2$
$-6a^8b^718a^4b^9$
$2x-5y+2y-3x$
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