$7y^{3\left(3x^2-7xy-6y^2\right)}$

$9\frac{2}{3}^2-12\frac{-1}{2}^3-6\frac{2}{3}\frac{-1}{2}-6\frac{2}{3}+1$

$y=\frac{1}{2}\left(x^4+7\right)$

$\int\frac{2x-1}{x\left(4x+1\right)}dx$

$\frac{d}{dx}\left(f\left(x\right)=\left(\frac{1+2x^2}{14-11x}\right)^4\right)$

$\left(2x^4-x^2-2\right):\left(x-2\right)$

$-2\left(-5-4\right)$