Mathematics
Senior High
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| 次の2次方程式を解け。
1) x-5x+3=0
(2) 9x?-6x+1=0
X=55-12
2
Xー53
2
(3) x+7x+11=0
(4) x?-3x+530
Xニ
カカー6カテレ
2
7 5
2
C
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