2根号5x²y分之4根号25x³y²解题过程..

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2根号5x²y分之4根号25x³y²解题过程..

2根号5x²y分之4根号25x³y²
=
2x根号5y分之20xy根号x
=
根号5y分之10y根号x
=5y分之10y根号x*根号5y
=2根号5xy