2. Add the following expressions:(o) a' + 2ab + b, a - 2ab + b, a-b – InterviewSolution

1.	2. Add the following expressions:(o) a' + 2ab + b, a - 2ab + b, a-b
Answer» (a²+2ab+b²)+(a²-2ab+b²)+(a²-b²)=a²+a²+a²+2ab-2ab+b²+b²-b²=3a²+b²

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