$\sqrt{2^2}$
$\int\frac{x^2}{\left(x^2+2x+2\right)}dx$
$\int e^{-2}\sin\left(\frac{x}{4}\right)dx$
$\left(3-7i\right)^3$
$x^2+10\cdot x+25\cdot x^2+10\cdot x+25$
$z2\:-\:12z\:+\:36$
$75r^2-120r+48$
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