$3x^2+2x+\frac{-8}{x}+2$

$\int x^2sen\left(1-x\right)dx$

$\frac{d^6}{dx^6}\left(x^7+2x^6+3x^2-4x\right)$

$\int\left(y^2+2y\right)\cos\left(y\right)dy$

$\ln\left(2x^4\right)$

$\sqrt{1.4142135623730951+\sqrt{5-7.348469228349534-1\cdot1.4142135623730951+\sqrt{8+2\sqrt{12}}}}$

$-a-3$