Solve this equation 2^(x+3) = 512
x=1,the equation=16 ; x=2,the equation=32; by such analogy,when x=6,the equation=512. so the answer is x=6.
2^(x + 3) = 512ln(2^(x + 3)) = ln(512) (x + 3)ln(2) = ln(512) ln(2) ln(2) (x + 3)ln(2) = ln(2^9) ln(2) ln(2) (x + 3)ln(2) = 9ln(2) ln(2) ln(2) x + 3 = 9 - 3 - 3 x = 6
