$100b^3\:-\:36b$

$\frac{x^3y^5}{xy^4}$

$\int\left(5-3z^4\right)^{\frac{3}{2}}z^3dx$

$\lim_{x\to0}\left(\frac{log\left(1+x\right)-x}{1-\cos\left(x\right)}\right)$

$6\cos\:^2a+5=8$

$\left(x-5\right)^2+\left(2x-1\right)\cdot\left(6-x\right)+1$

$\int_0^{\frac{1}{4}}\left(\frac{4x}{\sqrt{9-x^4}}\right)dx$