$\frac{7x^8}{8}-3x^2+c$
$9.6\cdot8.91$
$\sin\left(x\right)\cot\left(x\right)+8\cos\left(x\right)$
$y^2-3y-28$
$-20\:y\:-30$
$\frac{3x+6}{x+2}\le2$
$\frac{-x^3-6x^2+9x+8}{x+7}$
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