(10xy-4y²-4x²)÷(2x-y)怎么计算?
1个回答
(10xy-4y²-4x²)÷(2x-y)
=-2(2x²+2y²-5xy)÷(2x-y)
=-2(2x-y)(x-2y)÷(2x-y)
=-2(x-2y)
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