$\int_0^r\left(e^{-r}\right)rdr$
$12m^2-17m-14$
$\int\frac{2x+1}{\left(x^2+1\right)\left(x+1\right)^2}dx$
$-9=-x+12$
$4z^2-3\left(2\right)-4$
$2-7x\le16$
$\left(\frac{3}{4}b^2-\frac{6x^3}{5}\right)\left(\frac{6b^3}{5}+\frac{3x^3}{4}\right)$
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