$\frac{\left(a+b\right)^2-\left(a-b\right)^2}{ab}$
$\sqrt[3]{x^{9}y^{6}z^{3}}$
$\frac{d}{dx}\left(4x^2y-3y=x^3-1\right)$
$\left(i+m\right)^3$
$-2x^2+47x+130$
$\frac{x^2-4}{x^2+4}$
$\int_{-\infty}^4\left(\frac{2x}{x^2-1}\right)dx$
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