$\left(2x+m\right)^3$
$\frac{\tan^2\left(52.5\right)-\tan^2\left(7.5\right)}{1-\tan^2\left(7.5\right)\cdot\tan^2\left(52.5\right)}$
$t^2-6t+3$
$\frac{y^6}{y^2}$
$\frac{x^3-2x\sqrt{x}}{x}$
$50x-10x^2$
$25\cdot2\cdot3$
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