$5\left(3s+8\right)$
$s^3+s^2+s+1$
$\lim_{x\to-\infty\:}\left(\sqrt{x^2+x+1+x}\right)$
$3^y=5x+1$
$\frac{x}{\sqrt{x-7}}$
$-9\left(z-99\right)=9$
$\cos\left(y\right)\left(\sin^2\left(x\right)+\cos^2\left(x\right)\right)$
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