$f\left(x\right)=\sqrt{2x^2}-2$

$\left(3a+1\right)^3-\left(1+3a\right)^3$

$\sqrt[1]{-3}$

$-3m^3-7m^3$

$\lim_{x\to-1}\left(\frac{1-x^{4}}{x^{6}-1}\right)$

$\int\cos^5\left(2x\right)\sin^2\left(2x\right)dx$

$\frac{dy}{dx}=-\frac{\cos\left(x\right)}{\sin\left(y\right)}$