Mathematics
Senior High
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数Iの因数分解です。解答解説をお願いします。
9 次の式を因数分解せよ。
(1)x3 + x²y-x²-y
(2) 4x² - y² - 2y-1
(3) x²+2ax 3a² + 4x + 8a+ 3
(4) 2x² - xy-3y² - 3x + 7y-2
(5) ab(a - b) + bc(b − c) + ca(c − a)
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