![](https://iknow-base.cdn.bcebos.com/lxb/notice.png)
3个回答
展开全部
解答:
做法一:
51^2+49^2=(51+49)^2-2*51*49=10000-2*(50+1)(50-1)
=10000-2*(50^2-1)=10000-5000+2=5002
做法二:
51^2+49^2=(50+1)^2+(50-1)^2=50^2+2*50+1=50^2-2*50=1=5002
做法一:
51^2+49^2=(51+49)^2-2*51*49=10000-2*(50+1)(50-1)
=10000-2*(50^2-1)=10000-5000+2=5002
做法二:
51^2+49^2=(50+1)^2+(50-1)^2=50^2+2*50+1=50^2-2*50=1=5002
推荐律师服务:
若未解决您的问题,请您详细描述您的问题,通过百度律临进行免费专业咨询