2xy-5x-5y=0如何变形为(2x-5)(2y-5)=25

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2xy-5x-5y=0如何变形为(2x-5)(2y-5)=25

2xy-5x-5y=0如何变形为(2x-5)(2y-5)=25
2xy-5x-5y=0如何变形为(2x-5)(2y-5)=25

2xy-5x-5y=0如何变形为(2x-5)(2y-5)=25
(2XY-5X-5Y)*2=O
4XY-10X-10Y=0
(4XY-10X-10Y)+25=0+25
(4XY-10Y)-10X+25=25
(4XY-10Y)-(10X-25)=25
2Y(2X-5)-5(2X-5)=25
(2X-5)(2Y-5)=25