$\sqrt[3]{400a^2b^5c^{10}}\cdot\sqrt[3]{150a^7b^{10}c^2}$

$4^{x+5}=64$

$\int x^3e^{-\frac{x}{6}}dx$

$-3x+4y-2x-5x+6y$

$\lim_{x\to\infty}\left(\frac{2x^3+1}{x}\right)$

$\frac{\sin^{2}\theta\cot\theta}{\cos\theta}$

$\left(x^{-3}.a^4\right)^5.\left(x^{-2}.a^6\right)^{-3}$