$\int\frac{x^2+19x+36}{x\left(x^2+7x+12\right)}dx$
$3n^2+2\left(3n\right)\left(2m\right)+2m^2$
$\left(-5m-1\right)^2$
$x^3-2x^2-3x$
$6\left(-5-4\right)$
$-7\left(-1-n\right)$
$\frac{3}{4}^{\left(-2\right)\left(3\right)}4^3\:-\left(-2\right)^2\:\left(3\right)^3\left(4\right)^2+\:\left(-2\right)^3\:\left(3\right)^2\:4^3-\frac{1}{2}$
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