$\sqrt[3]{-27}-\sqrt[3]{24.9}$

$\lim_{x\to0}\left(\frac{x^3tan\left(x\right)}{sin^4\left(x\right)}\right)$

$\int4sen\left(5x\right)dx$

$\left(3^{3}\times3^{4}\right)^{3}$

$\left(x+15\right)\left(x+9\right)$

$\left(-5pxr\right)\left(7x^2q\right)\left(\frac{1}{35}x^2rq^2p^2\right)$

$-8x=40$