$4cos^2\left(\pi\right)-3sin^2\left(\pi\right)$

$\int_{-2}^2^{8y^4}dy$

$\sqrt[3]{252ab}\cdot\sqrt[3]{6b^2}$

$u^8-49w^6$

$\left(2x^4-x^2-6x-1\right)+\left(x^3-8x^2+4\right)-2\left(2x^4-x-2\right)$

$\left(\frac{3x^3y^0}{x^{-2}}\right)^4\cdot\left(\frac{y^2x^{-4}}{5xy^{-8}}\right)$

$\frac{dy}{dt}=1-t+x-tx$