Question

Simplifique a fração
2^n+2^n+1+2^n+2
       2^n+1

Answer 1

2^n+2^n+1+2^n+2 =  7.2^n  ==>   7
       2^n+1                    2.2^n           2

2^n+2^n+1+2^n+2= 2^n + 2^n . 2 +2^n .2^2= 2^n + 2. 2^n + 4.2^n = 7.2^n

2^n+1 = 2.2^n