$-4+7\left(1-3m\right)$

$1+11x+24x^2$

$\left(11x^3y^5-8x^5y^3\right)^3$

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

$\lim_{x\to a}\frac{\left(sec\left(x\right)-sec\left(a\right)\right)}{x-a}$

$\int\frac{cos^3\left(x\right)}{sen^2\left(x\right)}dx$

$\frac{d}{dx}5x^2y-7y^3+2x^4=-3$