$5mx+2=3m+x$
$\int\left(12\:x\:-5\right)^{15}dx$
$5w^2\:+\:w^2$
$x^2-2x=x^2$
$4x^2+7x+3x^3+8x^2$
$\lim_{x\to0}\left(\frac{e^x-e^{-x}-2x}{\sin\left(x\right)}\right)$
$\left(x+17\right)^2$
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