Question

9!-8!-7!= 

Answer 1

Ta có:

9!-8!-7!

=(7! x 8 x 9) - (7! x 8) - (7! x 1)

=7! x72 - 7! x 8 -7! x 1

=7! x (72-8-1)

=7! x 63

=5040x63

=317520

 

Answer 2

đề không hiểu

Answer 3

ko hiểu đề bài

Answer 4

khong hieu de bai

Answer 5

9! - 8! - 7! = ???????????

Answer 6

co dau "!" la giai thua the ma cx ko biet NGU NGUOI
 

Answer 7

9!-8!-7!

=362880-40320-5040

=322560-5040

=317520

Answer 8

9!-8!-7!= 317520