3 ^ 2X - 2 * 3 ^ X - 3 = 0 -------------------- 3 ^ X = A ; A > 0 -------------------- A^2 - 2A - 3 = 0 D = 4 + 12 = 16 ; √ D = 4 A1 = ( 2 + 4 ) : 2 = 3 A2 = ( 2 - 4 ) : 2 = - 1 ( < 0 ) ---------------- 3 ^ X = 3 X = 1 ---------------- Ответ Х = 1