Question
Compute:
$\frac{8 !}{(6-4) !}$

Answer

$\frac{8 !}{(6-4) !}=\frac{8 !}{2 !}$
$=\frac{8 \times 7 \times 6 \times 5 \times 4 \times 3 \times 2 !}{2 !}$
$=20160$

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