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Maribel factored y² - 30y + 81 as (y - 9)². Was she right or wrong? How do you know?

Maribel factored y² - 30y + 81 as (y - 9)². Was she right or wrong? How do you know?

Intermediate Algebra
Intermediate Algebra
19th Edition
ISBN:9780998625720
Author:Lynn Marecek
Publisher:Lynn Marecek
Chapter6: Factoring
Section6.3: Factor Special Products
Problem 232E: Maribel factored y230y+81 as (y9)2 . Was she right or wrong? How do you know?
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Maribel factored y² - 30y + 81 as (y - 9)². Was she right or wrong? How do you know?
Transcribed Image Text:Maribel factored y² - 30y + 81 as (y - 9)². Was she right or wrong? How do you know?
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