Question

What is the value of the expression 8P4

Answer 1

1,680

Step-by-step explanation:

Answer 2

1680

Step-by-step explanation:

nPr = n!/(n-r)!

Therefore:

8P4 = 8!/(8-4)!

we get;

= 8!/4!

= (8×7×6×5×4×3×2×1)/(4×3×2×1)

= 40,320/ 24

= 1680