(-5x-1/3y)(3/5x-3/4y+2).使用初一的方法解

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0逍00遥0 2023-03-19 13:59
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  • 2023-03-19 14:09

    (-5x-1/3y)(3/5x-3/4y+2)

    =-3x²-9/5xy+15/4xy+1/4y²-10x-2/3y

    =-3x²-36/20xy+75/20xy+1/4y²-10x-2/3y

    =-3x²+39/20xy+1/4y²-10x-2/3y

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