Question

3(2powerx+1)-2powerx+2+5=0

Answer 1

$3( {2}^{x} + 1) - {2}^{x + 2} + 5 = 0 \\ 3 \times {2}^{x} + 3 - {2}^{x} \times {2}^{2} + 5 = 0 \\ {2}^{x} (3 - 4) + 8 = 0 \\ {2}^{x} = 8 \\ {2}^{x} = {2}^{3} \\ x = 3$