Question

Determine o valor numérico de 5!-6!+4.5!.

Answer 1

5! = 5×4×3×2×1 = 120
6! = 6×5×4×3×2×1 = 720

5!-6!+4.5!=
120-720+4×120 =
120-720+480 =
-720+600 = -120

Answer 2

5!-6!+4.5!

5!=5.4.3.2.1=120

6!=6.5.4.3.2.1=720

120-720+480

600-720=-120