$-13\:-\:\left(-5\right)\:$
$\int\sin\left(2x-\frac{\pi}{6}\right)\cos\left(3x-\frac{\pi}{4}\right)dx$
$-2+\left(-1\right)-\left(-1\right)$
$\left(6x+a\right)\left(6x-b\right)$
$\left(4x^2-7y^3\right)^5$
$17\:=\:2x\:+1$
$-1250+-2350$
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