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数学
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多项式x^2--4,x^2-x-2的公因式是_____
人气:295 ℃ 时间:2020-03-30 06:59:00
解答
x^2-4=(x+2)(x-2)
x^-x-2=(x+1)(x-2)
所以公因式为(x-2)
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