Question

Determine o conjunto da equaçao exponencial 2x-1 +2x+2 =36

Answer 1

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

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

2^x(2^-1 + 2^2)=36
2^x(1/2+4)=36
2^x(9/2)=36
2^x= 36/9/2
2^x= 72/9
2^x= 8
2^x= 2^3
x= 3