2x方-4xy+y方因式分解是

fiona8842022-10-04 11:39:541条回答

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benney 共回答了22个问题 | 采纳率90.9%
2x-4xy+y =2x-4xy+2y-y =2(x-2xy+y)-y =2(x-y)-y =[(x-y)√2]-y =[(x-y)√2+y][(x-y)√2-y] =(x√2-y√2+y)(x√2-y√2-y)
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