$\int\frac{3x^3+2x-4}{x^3+8}dx$
$\lim_{x\to0}\left(\frac{\sin\left(x\right)-x}{e^x-1}\right)$
$-12+\sqrt{-25i}$
$2b-\left(-0.5c-10\right)$
$1-8m^3$
$\left(x^{a+1}-3y^{a-1}\right)\left(3y^{a-1}+x^{a+1}\right)$
$x^2+x+56$
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