What is 25y squared minus 9?

25Y2 - 9 = 0

25Y2 = 9

Y2 = 9/25

take square root each side

Y = sqrt(9/25)

Y = 3/5

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25(3/5)2 - 9 = 0

25(9/25) - 9 = 0

9 - 9 = 0

0 - 0

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