作业帮(x-y)²-8(x-y-2)
来源：学生作业帮助网 编辑：作业帮 时间：2024/07/29 11:32:52
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(x-y)²-8(x-y-2)
(x-y)²-8(x-y-2)
(x-y)²-8(x-y-2)
(x-y)²-8(x-y-2)
=(x-y)²-8(x-y)+8
=(x-y)²-8(x-y)+4²
=(x-y-4)²
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来源：学生作业帮助网 编辑：作业帮 时间：2024/07/29 11:32:52
(x-y)²-8(x-y-2)
(x-y)²-8(x-y-2)
(x-y)²-8(x-y-2)
(x-y)²-8(x-y-2)
=(x-y)²-8(x-y)+8
=(x-y)²-8(x-y)+4²
=(x-y-4)²