$2,5+2$
$8x^2-y^3=2x^3+4x^2$
$\lim_{x\to0}\left(\frac{x^2}{x^2+1}\right)$
$x\:+\:5\:<\:3$
$9w\:-\:w$
$\left(\cot+1\right)\left(\sqrt{3}\cot x+1\right)=0$
$\int_e^{\infty}\left(\frac{3}{xln\left(x\right)}\right)dx$
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