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x²-2x-6=0
x²-2x=6
x²-2x+1=6+1
(x-1)²=7
x-1=‪+-√‬7
x=1+-‪√‬7

間違っていたらすみません、わからないことがあれば聞いてください

𝚒𝚛𝚘𝚑𝚊

ほんとにありがとうございます❕❕
助かりました~🌷

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