$\int4x^{\frac{2}{3}}dx$

$\int\frac{-5x}{x^2-8x+12}dx$

$\cos\left(\tan+1\right)=\sin+\cos$

$x^2-7x+12\frac{1}{4}$

$\frac{cos\left(2x\right)+1}{sin\left(2x\right)\cdot tan^2\left(x\right)}=\:\frac{1}{tan^2\left(x\right)}$

$3x+5\ge2x-3$

$\int\frac{x^2}{\sqrt{1-4x^3}}dx$