SOLUTION: When the sum of 424 and three times a positive number is subtracted from the square of the number, the result is 126. Find the number.

SOLUTION: When the sum of 424 and three times a positive number is subtracted from the square of the number, the result is 126. Find the number.

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Question 902640: When the sum of 424 and three times a positive number is subtracted from the square of the number, the result is 126. Find the number.
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
n^2 -(3n+424) = 126
n^2 - 3n - 550 = 0 (Tossing out the negative solution for unit measure)
(n-25)(n+22) = 0, n = 25

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