$z^2-24z+49$
$-\left(-8\right)+\left(-9\right)-\left(-2\right)+5$
$12=n-9$
$\int\frac{5}{2x^2-3x+2}dx$
$\int_{-3}^3\sqrt{18-x^2}dx$
$\left(5x^{2\:}-8\right)\left(5x^{2\:}+7\right)$
$3s^2+14s+8$
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