Mathematics
Junior High
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この3つの解き方を教えてください!!

2°-10 xy+25 y? の ⑤ x+6 xy+9y° 18 ⑥ 16:'-49y°
因数分解

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✨ Best Answer ✨

上二つは(a+b)^2の式に直せますし、下は(a+b)(a-b)に変換できます。

*sumire*

ありがとうございますm(__)m
やってみます!!

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