Question

9!-8!-7!.8²

Answer 1

= 1 . 2 . 3 . 4 . 5 . 6 . 7 . 8 . 9 =  362 880

= 1 . 2 . 3 . 4 . 5 . 6 . 7 . 8 = 40 320

= 1 . 2 . 3 . 4 . 5 . 6 . 7 = 5040

8^ 2 = 8 . 8 = 64

= 362 880 - 40 320 - 5040 = 317 520

Answer 2

317 520 x 64 = 20 321 280

317 520 x 64 = 20 321 280

317 520 x 64 = 20 321 280