$\int e^{-x-ix}e^{-iwt}dx$
$64n^3-125y^3$
$\lim_{x\to-2}\:\:x^2-4\:\:x+2$
$2x+3\ge13$
$4z+31>17z+23$
$\frac{1}{3}a+\frac{2}{3}a$
$x^2\:+\:2x\:=\:3$
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