$y=\left(5-3x^2\right)^7\sqrt[2]{6x^2+8x-12}$

$\frac{2}{5}\left(\frac{10}{3}x+\frac{1}{4}y-\frac{15}{2}z\right)$

$\left(7a-b\right)\left(3a+b\right)$

$-\frac{2730}{3}$

$20+90+511d$

$2cos^2\theta\:\:=cos\theta\:\:$

$x^8\cdot x^8\cdot\frac{1}{x^8}\cdot\frac{1}{x^{16}}$