$x^2\frac{dw}{dx}=\sqrt{w}\left(5x+3\right)$
$\left(-3x-8\right)^2$
$y'\:=\left(9x\:-\:y\right)^2$
$x^2+4x+5=0$
$\lim_{x\to0}\left(x\:cotx\right)$
$x\:a\:la\:8$
$\frac{2}{2}+7+4+4+2$
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