Step-by-step explanation: a²+b²+c²=a+b+c+2ab+2bc+2ca a²+b²+c²=0+2(ab+bc+ca) a²+b²+c²=2(ab+bc+ca) Reply
Step-by-step explanation:
a²+b²+c²=a+b+c+2ab+2bc+2ca
a²+b²+c²=0+2(ab+bc+ca)
a²+b²+c²=2(ab+bc+ca)