Mathematics
Senior High
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この問題のこの解き方の意味が分かりませんでした。途中式を含めて教えてもらえると嬉しいです。

2)xyz+xy+xy+x+y+z
例題 11 (2) xyz+x²y+xy² + x + y + z == = (xy+1)z+yx²+(y²+1)x+y = (xy + 1)2 + (x + y) (yx + 1)) (9/22 = (xy+1)(x+y+2) = 1932 ! y y 22 1 → 1 12+1

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✨ Best Answer ✨

図に描きました
いつもアプローチは同じです

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