$x^2-\frac{3}{2}x\:+\frac{9}{4}$
$36x^2-1=0$
$\cos\left(2x\right)+2\sin^2\left(x\right)-3\:=\:-2$
$2w+4w^2-5w^3$
$\left(\frac{4}{3}m^2n^3+\frac{7}{3}x^2mn\right)^2$
$4^2-7^2$
$\int\frac{x^2+2x-1}{x^3+x}dx$
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