$\int\left(\sqrt{x^2+4}+2\right)xdx$
$\frac{x+1}{\sqrt{x+5}}-2$
$\int\frac{3x-1}{\left(x+1\right)\left(x+7\right)}dx$
$e^t\left(y\:+\:z\right)\:=\:\left(y\:+\:z\right)e^t$
$v^2+8v-9=0$
$-3\left(-1\right)^2$
$\int\frac{1}{\sec^5\left(2x\right)}dx$
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