$\left(144x^2+792x+1060\right)$
$4x^2+8x$
$\left(a-ab+xb+b\right)^2$
$\left(x\:+\:3\right)\left(x^{2\:}+\:6x\right)$
$\sin\left(x\right)^2+3$
$\lim_{t\to-\infty}arctan\left(e^t\right)$
$-15\:+\:95\:+\:49\:+\:47\:=\:$
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