$\left(\frac{1}{2}-w^4\right)\left(\frac{1}{2}+w^4\right)$

$\sqrt[3]{9x^2y}\cdot\sqrt[6]{81x^5}$

$\frac{6x^2y^5}{3x^3y^2z}$

$5,630\:+\:-400,298\:$

$\left(-\frac{\left(y^2\right)}{3}+3y\right)$

$\sec\left(1+\cos\left(x\right)\right)\left(1-\cos\left(x\right)\right)$

$7x^2-12x=4$