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この二次方程式の解き方を教えて頂きたいです‼️🙇‍♀️

(2) 8(x-3)²-56=0
二次方程式

Answers

Answers

−56を移項する
8(x−3)²=56

両辺を8で割る
(x−3)²=7

平方根を求める
x−3=±√7

−3を移項する
x=3±√7

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