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(³logx)² - 3.(³logx) + 2 = 0
a² - 3a + 2 = 0
(a - 1)(a - 2) = 0
a - 1 = 0
³logx = ³log3
x1 = 3
a - 2 = 0
³logx = ³log3²
x2 = 9
x1x2 = 3 . 9 = 27