a+19=b+11=c+5,求(b-a)平方+(c-b)平方+(c-a)平方的值
题目
a+19=b+11=c+5,求(b-a)平方+(c-b)平方+(c-a)平方的值
答案
b-a=19-11=8
c-b=11-5=6
c-a=19-5=14
(b-a)平方+(c-b)平方+(c-a)平方
=8^2+6^2+14^2
=64+36+196
=296
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