Question

2 The value of (a+b) ² + (a - b)²​

Answer 1

Answer:

2(a²+b²)

Step-by-step explanation:

a²+2ab+b²+a²-2ab+b²

2(a²+b²)

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Answer 2

Answer

$(a+b) ² + (a - b)² \\ \\ = (a {}^{2} + 2ab + b {}^{2} ) + (a {}^{2} - 2ab + b {}^{2} ) \\ \\ = 2a {}^{2} + 2b {}^{2} \\ \\ = 2(a {}^{2} + b {}^{2} )$

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