$a^4+20a^2+100$
$-73+2$
$64\:-36m^2$
$\frac{d}{dx}\frac{1}{1+x^2}+\left(\frac{2x}{1+x^2}+arctanx\right)arctanx$
$\frac{\left(3\:\cdot\:-4\:\right)}{-12}\:$
$8m^2-12m+10-15$
$y=\left(1+x^2\right)\left(x^{\frac{3}{4}}-x^{-3}\right)$
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