$\left(a+2\right)^4$
$44+\left(-35\right):5+\left(-7\right)-6$
$2x^2\:.\:\left(x^2\:-\:5\right)$
$a^2-2ah+h^2$
$\frac{4t^{5}-6t^{4}+8t^{3}-30t}{2t}$
$\left(3h^5k^7\right)^3$
$\left(p^5q^{-1}r\right)\left(p^{-1}q^0r^{-1}\right)\left(p^{-1}q^0r^4\right)$
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