$\left(a^2.b^3\right)\left(a^5.b^7\right)$

$\frac{dy}{dx}+\frac{x}{x^2}y=\frac{2x^2}{x^2}$

$\int_0^{\frac{1}{3}}\arctan\left(3x\right)dx$

$( - 2 a x ) ^ { 2 }$

$-736+-42$

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

$\frac{dy}{dx}=3x^2-12x^{-7}$