When y=9, the value of y² - 1 is

ThreeFx asked Oct 26, 2023

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ThreeFx asked Oct 26, 2023

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22 votes

Answer: 80:

Plug 9 into y.
y^2 - 1
(9)^2 - 1
81 - 1
80

Chris Simpson answered Oct 30, 2023

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