$3+2+6+4-1$

$\sqrt{\left(x-2\right)\left(3x+2\right)}$

$0.2819740503-\left(\frac{-0.99999682249\left(1.3-0.2819740503\right)}{12.78584918-12.78584918}\right)$

$\left(1-x^2\right)\left(1+x^2\right)$

$\lim_{x\to\pi}\left(\ln\left(\frac{x}{\pi}\right)\cdot\tan\left(\frac{x}{2}\right)\right)$

$\:\left(t\:+\:8\right)\left(t\:-\:8\right)$

$\frac{dy}{dx}\left(x^4y^3+\sqrt{3y-2x}=10\right)$