## Thinking Mathematically (6th Edition)

$\frac{8!}{(8-5)!}$ Step 1: (8-5)! = (3)! Step 2: $\frac{8!}{3!}$ = $\frac{8*7*6*5*4*3!}{3!}$ Since 3! is in the numerator and the denominator, cancel 3! 8*7*6*5*4 = 6720