Mathematics
Senior High
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49 次の式を因数分解せよ。
(1) (x-1)²-y²
(3) x² - (y+z) 2
*(5) x²+2x+1-4y²
*(7) x²-y²+2yz-z²
*(2) (x+y) 2-9
(4) a²-(6-1)2
(6) x²-6xy+9y2-1
(8) a2-62-26-1
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