$\sqrt{2x-2+2-\sqrt{x^2-2x}}$
$\int\frac{1}{\left(5-x\right)\sqrt{3-x}}dx$
$\:\left(z^2-1\right)\left(z^2+7\right)\:$
$4^2y^3$
$\lim_{x\to-\infty}\left(\frac{x+8}{x-3}\right)$
$-10x+-5x+3z$
$\frac{16x^4+7x-25x^2+7}{-5x^2+4x^3}$
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