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(2/3)x^2-1/9=0 解方程
人气：343 ℃ 时间：2020-04-15 02:31:28
解答
(2/3)x^2-1/9=0
(2/3)x^2=1/9
x^2=1/9÷2/3
x^2=1/6
两边开平方得：x=±√（1/6）
x=±6分之√6
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