帮我算数学题 ：25(x+2)的平方=9(x-1)的平方
人气：285 ℃ 时间：2020-03-29 09:53:52
解答
额.
(x+2)^2/(x-1)^2=9/25
(x+2)/(x-1) = 正负 3/5
所以 x = -2/13或者 -7/8
建议这种题目自己解决.
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