a²-ab+b²-bc+c²-ca solve this
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Answer:
a²+b²+c²-ab-bc-ca Or 2(a+b+c) -(ab+bc+ca)
Step-by-step explanation:
a²-ab+b²-bc+c²-ca
The sum of the equation.
⇒ a²-ab+b²-bc+c²-ca
⇒ a²+b²+c²-ab-bc-ca
⇒ 2(a+b+c) -(ab+bc+ca)
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