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2log(x(x + 2)) = 3
2log(x^2 + 2x) = 3
2log(x^2 + 2x) = 2log(2)^3
x^2 + 2x = 2^3
x^2 + 2x = 8
x^2 + 2x - 8 = 0
(x + 4)(x - 2) = 0
x = 2 atau x = -4
but wait...dalam log gak boleh minus jadii yang berlaku cuma X = 2