$\left(0.6+2x\right)^2$

$x\:+\:2y\:-\:3x\:+\:3y\:-\:y\:+\:x\:+\:u\:-\:v\:\:$

$\sec\left(x\right)+\tan\left(x\right)=\tan\left(x\right)$

$x^2-7x-30<0$

$\int_{\sqrt{2}}^{2}\frac{1}{t^{3}\sqrt{t^{2}-1}}dt$

$\frac{dy}{dx}=-yx$

$\lim_{x\to1}\left(\frac{x^2+x+9}{2x-1}\right)$