$\int\left(3x^2+5\right)^7dx$
$-7\cdot\left(5-7-4\right)$
$1710-832$
$2^{2+1}$
$\sqrt{-9}+3\sqrt{-4}$
$2x-7>5$
$\left(3a-2\right)\left(3a+2\right)$
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