$2\log\left(x\right)=\log\left(30+x\right)$

$\int_0^{\frac{1}{\sqrt{x}}}2xsen^{-1}\left(x^2\right)dx$

$\sqrt[3]{8x^3y^5}$

$\int\:x^6\:e^x\:dx$

$-t\left(-4t^3+8t^2\right)$

$\int11\left(11x+10\right)dx$

$\left(2\sqrt{2}-7\sqrt{5}\right)\cdot\:\left(2\sqrt{2}+7\sqrt{5}\right)$