$x^3-3x^2+2x$
$\int\left(sin\left(bx\right)\right)^4dx$
$\left(-7\right)x\:\left(-2\right)x\:\left(2\right)$
$2sin\left(x\right)^2=sin\left(x\right)^4-cos\left(x\right)^4+1$
$m-mn$
$4x^2-24x+47$
$4x^2-5=30-20x$
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