$x^3+2x^2+x^2y+2xy$

$\lim_{x\to1}\left(\frac{e^{2x}-1}{sen\left(x\right)}\right)$

$-33+-72-464$

$\int_{14.018\cdot10^{-3}}^{15\cdot10^{-3}}\left(21\sin\left(\frac{2\pi x}{0.015}\right)+6\right)\left(\sin\left(\frac{2\pi\cdot1\cdot x}{0.015}\right)\right)dx$

$\int\left(\frac{16-9x^2}{x^6}\right)dx$

$\sqrt{x^2}+4x-6$

$-5\left(-1\right)^7-8\left(3\right)^2$