Question

a + b whole square + a minus b whole square ​

Answer 1

Answer:

2(a² + b²)

Step-by-step explanation:

According to the Q,

>> (a + b)² + (a - b)²

>> (a² + 2ab + b²) + (a² - 2ab + b²)

>> a² + 2ab + b² + a² - 2ab + b²

>> 2a² + 2b²

>> 2(a² + b²)

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Answer 2

your answer is in attachment:

hope it helps you...