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

$\int\left(8x^3+9\right)^{-7}\cdot96x^2dx$

$\frac{3x}{\sqrt{2-x}}$

$\lim_{x\to0}\left(\frac{\ln\left(1-\sin\left(x\right)\right)}{\sin\left(x\right)}\right)$

$\left(\sqrt{144x-\sqrt{9}}\right)\left(\sqrt{144x+\sqrt{25}}\right)$

$220.41-723.2$

$\left(x+3\right)\left(x-3\right)\left(x^2+9\right)+81$