原式=-y(x^2-8xy+16y^2)
=-y(x-4y)^2
因式分解-x^2y+8xy^2-16y^3
因式分解-x^2y+8xy^2-16y^3
數(shù)學(xué)人氣:798 ℃時間:2020-02-04 04:54:31
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