$x2xvxux$
$169x^4-225y^{10}$
$2x-\frac{1}{2}\ge7x+\frac{7}{6}$
$\lim_{x\to0}\left(\frac{sin^2x-sinx^2}{cos\:x^2-1}\right)$
$\int\frac{x+3}{x^2+8x+12}dx$
$\sqrt[3]{x-6}=2$
$239\cdot128$
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