$\sqrt[3]{-27}-\sqrt[3]{24.9}$
$\left(-2\right)^{-2}\cdot\left(-2\right)^3\cdot\left(-2\right)^4$
$x+7\sqrt{x^2}-2x-65$
$\frac{b}{-6}=-3$
$\left(a^2+b^2+2ab\right)\left(a+b\right)$
$3y\:\cdot\:4y$
$100=\frac{x}{100}$
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