$\lim_{x\to\frac{1}{2}}\left(\frac{x^3-\frac{1}{8}}{x^2\:-x+\frac{1}{4}}\right)$
$\left(5x^2-4y\right)^3$
$\int\frac{21x-15}{x^2-x-2}dx$
$\int3x^{\frac{1}{7}}dx$
$m^2+10m+30=10$
$8z^3-72z^2+216z-216$
$y'+\tan\left(x\right)y=2x\cos\left(x\right)$
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