$\:\frac{4x^3+8x^2-x-2}{2x+1}$
$0=6x-\frac{48}{x^2}$
$\left(7r-3s\right)^2$
$\sqrt{3x-3}+x=7$
$4cos^2\left(a\right)-3$
$\int\sqrt{1-\sqrt{\cos^2x\left(\cot^2x\right)\left(\sin^2x\right)}}dx$
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