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x^2-3xy-10y^2-3x+y+2 因式分解
人气:358 ℃ 时间:2020-03-28 19:59:56
解答
x^2-3xy-10y^2-3x+y+2
=(x-5y)(x+2y)-3x+y+2
=(x-5y-2)(x+2y-1)
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