$y=\left(-2x^2-x\right)\frac{1}{x}$
$2x^2+28x+49$
$\int_0^t\left(bs^2\right)dbs$
$\left(m+3\right)\left(m+6\right)$
$5x+5;\:x=2$
$-x^4-2x^2+x+3;\:x=2$
$24x^2-30x+40$
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