Question

a^2 - 1 + 2b - b^2 factorize​

Answer 1

Answer:

a^2 -2b - b^2 -1

(a-b)^2 -1^2

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

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Step-by-step explanation:

Answer 2

a^2 +2b - b^2 -1

(a+b)^2 -1^2

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