Question

a²-b²-2b-1. please answer fast
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Answer 1

a² – (b+1)²

(a + b + 1)(a – b – 1)

Step-by-step explanation:

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Answer 2

Answer:

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

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

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

= a^2 - ( b^2 + 1^2 + 2b1 )

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

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