$\lim_{x\to\infty\:}\:\sqrt{x^2-3}-\:\sqrt{x^2+5}$
$-5<-189-j$
$\frac{3\tan\left(x\right)-\tan^3\left(x\right)}{1-3\tan^2\left(x\right)}$
$\left(x-2y\right)^4$
$\sqrt{8}^2$
$\:\left(3x^3+16x\right)^3$
$-7g^2n^3-2gn^2+3gn^2+2g^2n^3$
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