Question

a2+ab+b2=25
{b^2+bc+c^2=49}b2+bc+c2=49
{c^2+ca+a^2=64}c2+ca+a2=64
Then, find the value of
(a+b+c)²-100 = ????
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Answer 1

Answer:

a2+ab+b2=25

{b^2+bc+c^2=49}b2+bc+c2=49

{c^2+ca+a^2=64}c2

Answer 2

sorry for late but happy birthday to you kartik

may u live long and always be happy