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Answers
(2)は合ってますよ
(5)は4√6×√8÷2√12=4√6×2√2÷4√3
=8√12÷4√3
=2√4
=4
(8)は4√28-√72+√63=8√7-6√2+3√7
=11√7-6√2
(3).(4)は√の中がまだ小さくなりますよ。
(9)(10)は分母を有理化して上げると答えは出ますよ
ありがとうございます!!
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