log x^2 = log 2 + log (x+4) gimana caranya

logx² = log2 + log(x+4)
logx² = log2(x+4)
     x² = 2x + 8
x² - 2x - 8 = 0
(x - 4)(x + 2) = 0
x = 4 atau x = - 2