$\int\:\frac{28s+28}{\left(s^2+1\right)\left(s-1\right)^3}ds$
$x\frac{dv}{dx}+v=\frac{-1}{v-2}$
$h\left(x\right)=3\sqrt{x+4-6}$
$7a-9b+6a-4b-9a+18c$
$10^{\log\left(\sqrt{5}\right)}$
$\left(x-11\right)\left(x+13\right)$
$\frac{x+2}{x^{2}}-\frac{x-1}{3x}$
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