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数学
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关于x的方程:x^2+2x+1+3a^2=4a(x+1)
人气:481 ℃ 时间:2020-04-16 19:09:06
解答
(x+1)²-4a(x+1)+3a²=0
(x+1-3a)(x+1-a)=0
x=3a-1 x=a-1
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