$\frac{z^{-3}}{z^{-4}}$
$v^2-6vg+9g^2$
$\lim_{x\to3}\left(5-6x\right)$
$x^3y^2y^'=y^3+2$
$x^2\cdot\frac{dy}{dx}+7yx=x^3\cdot ln\left(x\right)+2$
$520a\:+\:\left[8a\:-\:3a\:+\:9a\:-\:\left(4a\:+\:2a\:-\:a\right)\right]\:$
$\int_0^{\pi\:}\:x^3cos\left(x\right)dx$
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