$\left(-76-\left[42+\left(12-6\right)+3\right]-10\right)-2$

$\lim_{x\to0}\left(\frac{e^x+2}{x^3}\right)$

$\left(2xy^2\right)\left(-x^2y\right)^2\left(3x^2y^2\right)$

$7f-f+19$

$\lim_{x\to\infty}\left(1+\frac{5}{x}\right)^{3x}$

$x\left(x^2+2x-3\right)$

$\frac{dy}{dx}=2e^{-\frac{x}{5}}$