Mathematics
Senior High
数2です！至急解説お願いしたいです🥲
□ 105* x+y=1のとき,等式 x+y2 = x +y-2xy を証明せよ。
□ 106 a+b+c=0 のとき,次の等式を証明せよ。
(1) * (a+b)(6+c)(c+α)=-abc
(2)
α+b+c-3abc=0
110
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E
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