$-3-\left(-3-6\right)$
$\int\left(3\tan\left(x\right)-4\sec\left(x\right)+5\right)\left(\cos\left(x\right)\right)dx$
$c-4=-18$
$\left(450-36\right)+\left(950-128\right)+\left(1900-322\right)-492$
$-2+4-\left(-5\right)-\left(-9\right)$
$3x^2+x+7$
$\left(9m^2+2c\right)^2$
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