Mathematics
Senior High
Resolved
連立不等式です
式の2つ目から3つ目に行くところが分かりません
なぜ(xy+2)が出てくるのでしょうか、、😢
(ii) x²y+xy²-5xy+2x+2y-10
xy(x+y-5)+2(x+y-5)
=
= (xy+2)(x+y-5)
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めちゃわかりやすいです！！！
助かりました！ありがとうございます😭😭