■ √の付いている式は,文字式と同じように,掛けたり展開したりできます.
例(a+b)2=a2+2ab+b2 と同様にして ![]() 【問題】 次の数を変形して,なるべく簡単にすると下のどの値になりますか.(√がない形にするか,または,√の中をなるべく簡単な整数にしなさい.) ![]() ![]() ![]() 次の問題を出す 途中経過を見る |
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