$\int\left(3+\tan\left(4x\right)\right)^2dx$

$\frac{\cos\left(a\right)\tan\left(a\right)^2}{\sin^2\left(a\right)}$

$\left(2g\right)^6$

$x-3y\:para\:x=5\:e\:y=2$

$\frac{\left(35x^3y^4\right)}{\left(15x^8y^{-5}\right)}$

$4x^5+2nx^2$

$\left(-5x^2-3x\right)-\left(2-4x+6x^2\right)+\left(9x-10\right)$