$3\left(g-8\right)+4\left(-g+2\right)-5\left(2g-3\right)$

$y=\left(2t+3\right)^2\left(3t^2-1\right)^{-3}$

$\frac{d}{dx}\left(\frac{1}{b}\cot\left(a-bx\right)+c\right)$

$7a-3a^2+2a^2$

$\int18cos\left(x\right)dx$

$\frac{dx}{dt}=\frac{3-x}{125}$