$\left(b+1\right)^3$

$3xy^2+3xy^2+6x^2y^3+6x^2y^3$

$-\frac{1}{40}y+\frac{1}{6}y$

$\lim_{x\to0}\left(\frac{x}{1-cos\:x}-\frac{2}{x}\right)$

$-4\left\{3\cdot\left(5-3\right)\cdot\left(-4\right)\cdot3\left(-4\right)\cdot\left(4+9\right)\right\}$

$\int_0^1\left(\frac{79}{\sqrt{1-x^2}}\right)dx$

$\frac{5x^4-1}{x-2}$