$11x-23<-3+6x$

$\frac{1+\frac{2}{\infty}}{\sqrt{1+\frac{3}{\infty}}-\frac{1}{\infty}}$

$5x-x^2+7x^2-9x+2$

$\left(\frac{\left(x+1\right)\left(2x+1\right)\left(3x+1\right)}{\sqrt{\left(4x+1\right)}}\right)$

$\left[3\left(x+4\right)-2\left(2x-3\right)\right]\left[\left(x+4\right)-5\left(2x-3\right)\right]$

$3\cos^2x+sinx-1=0$

$\int\frac{\left(x-5\right)}{\left(4x-5\right)^2}dx$