Question

factorise a²-b²-(a+b)²​

Answer 1

Step-by-step explanation:

We know the identity a 2 −b 2

=(a+b)(a−b)

Using the above identity, the given expression

a 2−b 2−a+b can be factorised as follows:

a 2 −b 2 −a+b=[(a+b)(a−b)]−1(a−b)=(a−b)(a+b−1)

Hence, a2 −b 2 −a+b=(a−b)(a+b−1)

Answer 2

Answer:

a²-b²-a²-b²-2ab

-2b²-2ab

-2b(b-a)

Step-by-step explanation:

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