$-2-\left[5-\left(1-7\right)-6\right]$

$20x^4y^3-10x^3y^4+15x^2y^2$

$\frac{dy}{dx}=-\frac{\left(2-3x^2\right)}{x^3-2x}y$

$\frac{11}{12}-\frac{1}{6}b+\frac{5}{6}b-\frac{1}{3}$

$\int\sqrt{x}\left(1-\sqrt[3]{x^2}\right)^{-1}dx$

$4\cdot5\cdot2$

$\int\frac{x}{\left(4x^2+16x+17\right)^{\frac{3}{2}}}dx$