Question

Resolva a expressão 2^x+2+2^x-1=36

Answer 1

2^x+2+2^x-1=36

2^2.2^x + 2^x = 36
               2

4.2^x + 2^x = 36
               2

4.2^x + 2^x = 36

8.2^x + 2^x = 72

9.2^x  = 72 ==>  2^x = 72/9

2^x = 8 ==> 2^x = 2^3 ==> x = 3