Question

3 (2^x +1 )-2^(x+2)+5=0

Answer 1

Answer:

3(2^x+1)-2^(x+2)+5=0

3.2^x+3-2^(x+2)+5=0

2^x(3-2^2)+8=0

2^x(3-4)=-8

2^x(-1)=-8

2^x=8

x=3