Question

If a^2+ b^2 + c^2 = (a + b + c)^2, then ab + bc + ca =​

Answer 1

Answer:

0 is the anwer.rrrrrrrrr

Answer 2

Answer:

a²+b²+c²=a²+b²+ç²+2ab+2bc+2ca

a²+b²+c²-a²-b²-c²=2(ab+bc+ca)

0=2(ab+bc+ca)

0/2=ab+bc+ca

ab+bc+ca=0