$\frac{3}{8}a-0.2a$
$12x^2+5x-2$
$144z^8+72z^8y+9y^2$
$x^2+7x+10>0$
$9\sqrt{3}\cdot4\sqrt{5}$
$\int\frac{-3x-1}{x^2-x}dx$
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