$x+1\sqrt{x}$
$x^4\sqrt{x}$
$2\cos\:^2x=-\sqrt{2}\cos\:x$
$4x\:\cdot\:2y$
$7a-4b+5\:-7a+4a-6c$
$\int r\:e^{\frac{r}{2}}dr$
$\left(m^6\right)\cdot\frac{m^5}{m^7}$
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