Question

simplifique e efetue.
A)4! + 5! sobre 3!

B)0! sobre 2! + 6! sobre 5!

C) (2x+1)!= 24

D) (x+3)! sobre (x+2)! = 2

Answer 1

Bom dia 

A)4! + 5!/3! = 4! + 5*4 = 24 + 20 = 44 

B) 0!/2! + 6!/5! = 1/2 + 6 = 13/6

C) (2x+1)! = 24 = 4! ,  2x+1= 4, x = 3/2 

D) (x+3)!/(x+2)! = 2

(x + 3)*(x + 2)!/(x + 2)! = 2
x + 3 = 2
x = -1