$\left(-2\right)\cdot\left[-29\right]$
$2x^2+8x+1=0$
$\left(-3x^2y\right)\left(x^2+4xy+y^2\right)$
$2x+3=-15$
$\frac{4x-7}{6x^2+13x-5}$
$\int3\:cos\:\left(2x-1\right)\:dx$
$\cos^2x\sec x$
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