Why isn't factoring 81x4 - 16 as (9x2 + 4)(9x² – 4) a complete factorization?

College Algebra
10th Edition
ISBN:9781337282291
Author:Ron Larson
Publisher:Ron Larson
ChapterP: Prerequisites
Section: Chapter Questions
Problem 13T
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Why isn't factoring
81x4 - 16 as
(9x2 + 4)(9x² – 4)
a complete factorization?
Transcribed Image Text:Why isn't factoring 81x4 - 16 as (9x2 + 4)(9x² – 4) a complete factorization?
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