Question

Factorize: a^2 +2ab+2b-1

Answer 1

Answer:

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

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

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

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

{b(a-1) }{b(a-1) }

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

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