Question 1028553
Find the largest of three consecutive odd integers such that the product of the first and third is one more than four time the second.
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Use n-2, n, n+2
(n-2)*(n+2) = 4n+1
n^2-4 = 4n+1
n^2 - 4n - 5 = 0
(n-5)*(n+1) = 0
--> 3, 5 & 7
or -3, -1, +1