$\left(2-5\right)\cdot\left(4-3\cdot\left(4-9\right)\right)-\left(2-7\right)\cdot\left(15-2\cdot\left(9-4\right)\right)$

$5\sqrt{4x^2-8x+4}\:+7\sqrt{\left(x-1\right)\left(2x-2\right)}\:-2\sqrt{2}$

$3\sqrt[3]{a^2}^5$

$\lim_{x\to1}\left(2x^3-\frac{3}{x-1}\right)$

$\int\frac{7}{2}e^xdx$

$\int\:x\left(1+6x^3\right)^2dx$

$125\cdot49$