Question

Resolva a equação 2^x+2^x.2^-1=12

Answer 1

Resposta:

2^x + 2^x-1 = 12

2^x + 2^x = 12

2

2.2^ x +2^x = 24

3.2^x = 24

2^x = 8

2^x 2^3

X=3