SOLUTION: The cube of a number is equal to eleven times the square of the number less thirty one times the number plus twenty one. The cube of the number is also equal to fifteen times th

SOLUTION: The cube of a number is equal to eleven times the square of the number less thirty one times the number plus twenty one. The cube of the number is also equal to fifteen times th

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Question 388787: The cube of a number is equal to eleven times the square of the number less thirty one times the number plus twenty one.
The cube of the number is also equal to fifteen times the square of the number less thirty eight times the number plus twenty four. Find the number.
Answer by scott8148(6628) (Show Source): You can put this solution on YOUR website!
11n^2 - 31n + 21 = 15n^2 - 38n + 24

0 = 4n^2 - 7n + 3

factoring ___ 0 =(4n - 3)(n - 1)
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