Simplyfy this plz need this it is so important – InterviewSolution

1.

Simplyfy this plz need this it is so important

Answer»

Step-by-step EXPLANATION:

(a+b)²+(a-b)²

=a²+2ab+b²+a²-2ab+b²

=2a²+2b²

2(a²+b²)

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