Add: a2 + ba - bc
+ c2 + 2cb-5ca
+ b2 + ac - 2ab
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Answer:
a²+ba-bc+c²+2cb-5ca+b²+ac-2ab
a²+ba-2ab-bc+2cb+c²-5ca+ac+b²
a²+c²+b²-ab+cb-4ac
please mark as the brainliest
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