Question

Solve the following

Answer 1

Answer:

(1 + a - b)(1 - a + b)

Step-by-step explanation:

1 + 2ab - (a^2 + b^2)

= 1 + 2ab - ( (a - b)^2 + 2ab )

= 1 + 2ab - (a-b)^2 - 2ab

= 1 - (a-b)^2

= 1^2 - (a-b)^2

=(1 - (a-b))(1 + ( a-b))

=(1-a+b)(1+a-b)

=(1 + a - b)(1 - a + b)