Mathematics
Senior High
Solved
この黄色マーカーのところの式がわかりません。
見づらくてすみません！！
式↴
{x+y+(-1) }{x²+y²+(-1)²-x·y-y·(-1)-(-1)·x}
です！
お願いします🙇🏻♀️
Answers
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