Mathematics
Junior High

この問題ってどうやって解きますか??

(2 √2-1) (2-1)

Answers

分配法則でかけましょう
(2√2-1)(√2-1)
=2√2×√2-2√2-√2+1
=4-3√2+1
=5-3√2

煎茶

ありがとうございます!!

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