$\int\sqrt{x}^3+4\:dx$

$20-1.75-4.15-6$

$\cos\left(x-\sin\left(x\right)\right)\left(1-\cos\left(x\right)\right)=0$

$-2\cdot4-18\cdot2-40$

$\left(2^{-3}\cdot3^2\right)^2$

$\left(x+y\right)\left(x^2+xy+y^2\right)=x^3+y^3$

$\frac{\left(x+y\right)\left(y+x\right)}{x-y}$