Question

• (a + b)2 = a 2 + 2ab + b2
plz explain this using no.
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Answer 1

Answer:

question is wrong

Step-by-step explanation:

and answer is also wrong

Answer 2

Answer:

Why (a+b) 2 = a2+b2+2ab ?

Ever wondered how was the above formula derived?

Probably the answer would be yes and is simple. Everybody knows it and when you multiply (a+b) with (a+b) you will get a plus b whole square.

(a+b) * (a+b) = a2 +ab + ba + b2 = a2 + 2ab + b2