Mathematics
Senior High
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40 次の式を因数分解せよ。
(1) a²b+a-b-1
(3) 4-4y+2xy-x2
*(5) a²+b²+bc-ca-2ab
教p.20 応用例題1
*(2) x²-8y+2xy-16
*(4) x²+xy-2x-3y-3
(6) 4x²y-4x²z+y²z-y³
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