Question

$(a + b) ^{2}$
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Answer 1

Answer:

(a+b)²=a²+b²+2ab......

Answer 2

(a+b)²

=> (a+b).(a+b)

=> a² + ab + ba + b²

=> a² + 2ab + b²

So,

(a+b)² = a² + b² + 2ab