Question 773701
2 ^ (x + 4) - 2 ^ (x + 2) = 3
------
{{{2^(x+2)*(2^2 - 1) = 3}}}
{{{2^(x+2)*3 = 3}}}
{{{2^(x+2) = 1}}}
x+2 = 0
x = -2