$x^2-5x-4\ge0$

$f\left(x\right)=\left(x^2+3x\right)\left(4x^3-6x\right)$

$\int\:\:8ln\left(8x-23\right)dx$

$\frac{du}{dp}=\frac{\left(p+r+t\right)+\left(p-r+t\right)}{\left(p-r+t\right)+\left(p+r-t\right)}$

$\frac{1}{2}e^{2x}x^3+\frac{1}{4}e^{2x}x^2+\frac{1}{4}e^{2x}x-\frac{13}{8}e^{2x}$

$10x+4y-y-4y$

$\left(2001\right)^2$