$\left(2x^2-4y^2z^3\right)\left(2x^2+4y^2z^3\right)$
$\int\left(\frac{-3}{5-x}\right)dx$
$2\sqrt{\frac{3^2+5^2}{3^{-2}+5^{-2}}}$
$2x^2y^2+x^2+y^2-5,\:x=-2,\:y=2$
$\frac{5}{9}\cdot\left(-4-32\right)$
$74\cdot66$
$10-6\cdot3\cdot4$
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