$\left(n^2\right)^3$

$\left(m^3-2\right)\left(m^3+2\right)$

$\left(3a^2b+2a\right)\left(3a^2+2a\right)$

$\frac{dy}{dx}+\frac{2xy}{-x^2+y^2}=0$

$\left(4m+2n\right)\left(4m+2\right)$

$\int\frac{2x-4}{x^2+6x}dx$

$\left(x^2-\frac{5}{2}\right)\left(x^2-\frac{6}{25}\right)$