x²-2xy+y²+2x-2y-8
来源:学生作业帮助网 编辑:作业帮 时间:2024/05/11 19:26:41
x²-2xy+y²+2x-2y-8
x²-2xy+y²+2x-2y-8
x²-2xy+y²+2x-2y-8
x²-2xy+y²+2x-2y-8
=(x-y)²+2(x-y)-8
=(x-y+4)(x-y-2)
x²-2xy+y²+2x-2y-8
=(x-y)²+2(x-y)-8
=(x-y+4)(x-y-2)
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来源:学生作业帮助网 编辑:作业帮 时间:2024/05/11 19:26:41
x²-2xy+y²+2x-2y-8
x²-2xy+y²+2x-2y-8
x²-2xy+y²+2x-2y-8
x²-2xy+y²+2x-2y-8
=(x-y)²+2(x-y)-8
=(x-y+4)(x-y-2)
x²-2xy+y²+2x-2y-8
=(x-y)²+2(x-y)-8
=(x-y+4)(x-y-2)