$x^2+18x+35=0$

$\left(x+2\right)\left(x-4\right)$

$2x^2+7x-18$

$\int x\left(2x-5\right)^{-\frac{1}{2}}dx$

$\frac{\tan\left(x\right)}{\csc\left(x\right)+\cot\left(x\right)}-\frac{\tan\left(x\right)}{\csc\left(x\right)-\cot\left(x\right)}=-2$

$\left(x-250\right)^2$

$\int_0^{\infty}\left(\left(\frac{1}{a+b}\right)e^{\left(-\frac{x}{b}\right)}\cdot x\right)dx$