Question

(-a-b)^2
who can solve this easy question
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Answer 1

Answer:

Taking out - sign common from (-a-b)²

We get - (a+b) ²

Applying the formula (a+b) ² = a²+b²+2ab

We get,

-(a²+b²+2ab)

(opening the bracket)

-a²-b²-2ab.

Hope it helps.