Question

2. Complete the identity: (a + b)2 = a

2 + b2 + …….

(a) 2ab (b) 4ab (c) 3ab (d) none of these​

Answer 1

Answer:

2ab

Step-by-step explanation:

it is a formula! no explaination

Answer 2

Step-by-step explanation:

(a+b)²=a²+2ab+b²

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