$\left(-12+45-19\right)+\left(-3+8-9\right)+\left(-7+5-6+12\right)$
$\frac{5.5}{5}$
$\left(5c^5a^6b^5\right)^2$
$\int5\pi t^3dt$
$\left(7x-8\right)\left(1\right)$
$tan^3x\:=\:3tan^2\left(x\right)sec^2\left(x\right)$
$\int\frac{x^2+2x+6}{x^3-x}dx$
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