Question

Q | factorise following
a²b² - b²+2a²-2​

Answer 1

Answer:

We know the identity a

2

−b

2

=(a+b)(a−b)

Using the above identity, the given expressiona

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, a

2

−b

2

−a+b=(a−b)(a+b−1)

Answer 2

Step-by-step explanation:

a²b²-b²+2a²-2

b²(a²-1)+2(a²-1)

(b²+2)(a²-1)

(b²+2)(a+1)(a-1)