$-9x+6\ge69$

$4x^2y^4-36x^4y^2$

$-7-5+-4-3-8+9-6+-2$

$\frac{-x^2-4}{-4x+8}$

$f\left(x\right)=x^2e^{5x}\left(3x-1\right)^3$

$\lim_{x\to\frac{\pi}{4}}\left(\frac{\ln\tan\left(x\right)}{\sin\left(x\right)-\cos\left(x\right)}\right)$

$\left(-4\right)-\left(-5\right)+\left(-6\right)-\left(-1\right)+\left(-5\right)$