$\int\left(\frac{x+1}{x^2+2x-2}\right)dx$

$\frac{3.6\cdot\:10^7}{\left(2.5\cdot\:10^6\right)\left(1.6\cdot\:10^3\right)}$

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

$-2\cdot\left(-3\:+\:\left(-1\right)\right)$

$3x\ge9$

$\left(5x^4+6y\right)\left(5x^4-6y\right)$

$\lim_{x\to1}\left(-x\right)\:\left(8x^2\:+2x-5\right)$