Question

(a-b)2 - (a+b)2 = .......
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Answer 1

Answer:

-4ab

Step-by-step explanation:

by using identity (a-b)^2= $a^{2} +b^{2}-2ab$ and (a+b)^2=$a^{2} +b^{2} +2ab$

as according to question

(a-b)^2-(a+b)^2=$a^{2}+ b^{2}-2ab- a^{2} -b^{2}-2ab$

-2ab-2ab

=-4ab

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