$4x^2\left(5x^2+2\right)$

$b-5=9$

$\frac{dy}{dx}=x^2y^3+xy^3$

$\frac{d}{dx}\left(\sqrt[5]{\frac{\left(x+1\right)\left(2x-3\right)^{\frac{3}{2}}}{\left(1-x-3x^2\right)^3}}\right)$

$\int\left(\frac{-1}{\sqrt{5t+1}}\right)dt$

$\frac{\left(1-\tan^2\left(x\right)\right)}{\sec^2\left(x\right)}=1-2\sin^2\left(x\right)$

$\left(4x^m\right)\left(x+3\right)$