Mathematics
Junior High
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この問題が、分かりません( ノД`)
中2の多項式で出てきたのですが…

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✨ Best Answer ✨

x+y=2xy になるから
4x-3xy+4y
=4(x+y)-3xy
=4×2xy-3xy
=8xy-3xy
=5xy
だから、
与式=5xy/2xy=5/2

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