$2\sin\left(x\right)^2-3\sin\left(x\right)+1$
$-5x\:+25\:>65$
$-\left(-x-3\right)$
$16x^2+16xy+4y^2$
$x^2+3x+5;x=-1$
$36k^6-1$
$\left(-8\right)^2+7\left(-8\right)-8$
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