$2b^2-2b^2$
$\frac{x^5}{5}+2x^3+9x$
$\int4\sec^24xdx$
$\lim_{x\to0}\left(\frac{4\sin\left(x\right)}{\sin\left(-2x\right)}\right)$
$w^{2}+20w+100$
$5x\left(x-3\right)-4x^2\ge x\left(x+1\right)+112$
$\int\sin^2\left(ax\right)\cos^2\left(ax\right)dx$
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