某天数学课上.学习了整式的除法运算,放学后,小明回家拿出课堂笔记认真的复习课上学习,他突然发现有一

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  • :(21X^4Y^3 - 35x^3Y^2+7X^2Y^2)÷(-7X^2Y)= -3x^2y^2+5XY-Y

    :(21X^34Y^ - ____ +7X^2Y^2)=( _____+5XY-Y)(-7X^2Y)

    :(21X^4Y^3 - ____ +7X^2Y^2)÷= (_____)-35X^3Y^2+7X^2Y^2

    :(21X^4Y^3 )÷(-7X^2Y)= -3x^2y^2

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