$f\left(-1\right)=4x^3+2x$
$\int_{\frac{\pi\:}{2}}^{2\pi\:}\:sen^2\left(\theta\:\right)cos\left(\theta\:\right)d\theta\:$
$6a^2b^2+3c^2$
$\sqrt{-2}+\sqrt{-18}$
$\left(2x+6\right)\cdot\left(6x^2+10x+2\right)$
$-\frac{1}{2}\left(14x-12y\right)$
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