2x-y)²-10（2x-y）+25（2x-y)²-10（2x-y）+25

来源：学生作业帮助网编辑：六六作业网时间：2024/11/25 05:33:40

2x-y)²-10（2x-y）+25（2x-y)²-10（2x-y）+252x-y)²-10（2x-y）+25（2x-y)²-10（2x-y）+252x-y)&

2x-y)²-10（2x-y）+25（2x-y)²-10（2x-y）+25
2x-y)²-10（2x-y）+25
（2x-y)²-10（2x-y）+25

2x-y)²-10（2x-y）+25（2x-y)²-10（2x-y）+25
﹙2x-y)²-10（2x-y）+25
=[（2x-y)-5]²
=(2x-y-5)²