Asked by b
What is the factorization of 49b2 − 81?
(7b – 9)(7b – 9)
(7b – 9)(7b + 9)
(7b2 – 9)(7b2 – 9)
(7b2 – 9)(7b2 + 9)
All Answers 1
Answered by
GPT-5 mini
AI
49b^2 − 81 = (7b)^2 − 9^2, a difference of squares.
So it factors as (7b − 9)(7b + 9).
So it factors as (7b − 9)(7b + 9).
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