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QUESTION IMAGE

solve (3x - 2)(x - 4) = 0

Question

solve (3x - 2)(x - 4) = 0

Explanation:

Step1: 应用零乘积性质

若\(ab = 0\),则\(a = 0\)或\(b = 0\)。对于\((3x - 2)(x - 4)=0\),可得\(3x - 2 = 0\)或\(x - 4 = 0\)。

Step2: 解\(3x - 2 = 0\)

方程两边加\(2\):\(3x - 2 + 2 = 0 + 2\),即\(3x = 2\)。
两边除以\(3\):\(x=\frac{2}{3}\)。

Step3: 解\(x - 4 = 0\)

方程两边加\(4\):\(x - 4 + 4 = 0 + 4\),得\(x = 4\)。

Answer:

\(x=\frac{2}{3}\)或\(x = 4\)