Question

Reslove into Factors !


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Answer 1

okay so,

(a+b)^2= a^2+2ab+b^2.

and,

(a-b)^2=a^2+2ab-b^2.

A.T.Q

(a+b)^2-(a-b)^2=a^2+2ab+b^2-a^2+2ab-b^2= 4ab(answer)

Answer 2

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(a + b) ^ 2- (a - b) ^ 2

(a + b + a - b ) (a + b - a + b)

2a × 2b

4ab

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