Question

Simplifique a fração:
(2x+2)!/(2x)!

Answer 1

(2x+2) . (2x+ 1) . (2x)!/ (2x)!

$4 x^{2} + 4x + 2$

Answer 2

2x + 2)! = (2x + 2) (2x + 1) (2x)! 

então 
(2x + 2)! / (2x)! 

(2x + 2) (2x + 1) (2x)! / (2x)! --> simplifica (2x)! 

(2x + 2) (2x + 1) = 4x² + 3x + 2