$2-7x^2-8x^2$
$\left(y+2cm\right)^3$
$\frac{x^1-2}{x-4}$
$64^{1\:}$
$\left(x-7\right)\left(x+8\right)$
$\left(7-4i\right)\left(7-4i\right)$
$cos^2\left(x\right)+sin^2\left(\frac{x}{2}\right)=1$
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