Question 162626: Three times the square of a certain positive number exceeds six times the number by nine. Find the number: Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! Three times the square of a certain positive number exceeds six times the number by nine. Find the number:
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Let the number be "x":
EQUATION:
3x^2 = 6x+9
x^2-2x-3 = 0
(x-3)(x+1) = 0
Positive solution:
x = 3
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Cheers,
Stan H.
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