Mathematics
Junior High
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Q 因数分解
(x-y)(x-2y)+2y(x-2y)
のやり方を教えてください🙏
答えは(x-2y)(x+y)です

因数分解

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✨ Best Answer ✨

(x-2y)でくくります!

与式 = (x-2y){(x-y)+2y} = (x-2y)(x+y)

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