$w^2-5w$
$y'=2y+34x+52$
$\int\frac{1}{\sqrt{x^2-196}}dx$
$4k^2-8k-2$
$4m^2-8mn-4m+8n$
$2-3x\le9-4x$
$\left(y^3-10\right)^2$
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