$\left(4x^2-3x+9\right)^2$
$\frac{d}{dx}y=\frac{xy+2y-x-2}{xy-3y+x-3}$
$-6x+18<2-4x$
$x^2+3x+2=0$
$400.90-78.105$
$-3m\:+\:8\:=\:-13\:\:\:\:\:$
$\int x^2\cos^2\left(x\right)dx$
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