Mathematics
Junior High
Solved
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6 x-y=-1, xy=6のとき、次の式の値を求めよ。
□(1) x2+y2
☐(2) (x+y)²
(4)
□(5) -xy-xY
x³y²-x²y³
(3) x²-4xy+y²
□(6)
2+
XC
I
y
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ありがとうございます!