✨ Best Answer ✨
両辺にx-1を掛けて(x-1)²=1
x-1=±1
なんらかの理由（問題文で与えられている何か）によって
x-1=-1は不適で、x-1=1
です
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✨ Best Answer ✨
両辺にx-1を掛けて(x-1)²=1
x-1=±1
なんらかの理由（問題文で与えられている何か）によって
x-1=-1は不適で、x-1=1
です
Users viewing this question
are also looking at these questions 😉
解けました！ありがとうございます！