$\left[\frac{\sqrt[3]{27a\:}\:\sqrt{b^{-3}}\:a^{-\frac{1}{3}}\:b}{\sqrt{b^{-1}}\sqrt{16a^2}}\right]^{-1}$

$2x+6y+2z+8y+2y+6x+2y+3z$

$x+5<0$

$\int\sin^2\left(ax\right)\cos^2\left(ax\right)dx$

$\int\left(2x^4-1\right)^3x^3dx$

$\frac{d^2}{dx^2}\left(13x^2+y^2=3\right)$

$16-5x\ge3x$