$\frac{b^{7}}{b^{2}}$

$\lim_{x\to\infty}\left(\left(x^2-8x\right)^{\left(\frac{1}{2}\right)}-x\right)$

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

$\int\:-7x^9dx$

$\left(3^2-3\right)-\left(2^2\cdot3^2\right)-\left(5^2\right)^0$

$2.3\cdot10\left(-5\right)$

$\sqrt{2^4}\cdot3^6$