$130-15000$
$\int\frac{2x-x^2+5}{\left(x+2\right)^3}dx$
$36x^4-64$
$y^2-17y+b=\frac{289}{4}$
$\left(-20\right)\:-\:\left[\left(+5\right)\:+\:\left(-6\right)\right]\::\:\left(-1\right)\:+\:\left(-3\right)$
$-4x\:+-6=2$
$sec^2e\left(cot\:e\right)$
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