7! − 6! − 5!

is gelijk aan  . 
A.   7! . 6 . 5
B.   5! . 6 . 5
C.   5! . 6 . 7
D.   5! . 5 . 7
E.   4!
A    B    C    D    E 

[ 6-6747 - op net sinds 28.4.13-(E)-27.10.2023 ]

Translation in   E N G L I S H

7! − 6! − 5!
is equal to
A.   7! × 6 × 5
B.   5! × 6 × 5
C.   5! × 6 × 7
D.   5! × 5 × 7
E.   4!

Oplossing - Solution

7! − 6! − 5! = 7.6.5! − 6.5! − 5! = (42 − 6 − 1).5! = 35.5! = 7.5.5!