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分解因式:x方-10xy+25y方-6x+30y+8
人气:457 ℃ 时间:2020-10-01 21:57:28
解答
x²-10xy+25y²-6x+30y+8
=(x-5y)²-6(x-5y)+8
=(x-5y-2)(x-5y-4)
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