SOLUTION: If the square of a positive number is increased by 3 times the number,the result is 54.Find the number.

Question 672409: If the square of a positive number is increased by 3 times the number,the result is 54.Find the number.
Found 2 solutions by ReadingBoosters, stanbon:
Answer by ReadingBoosters(3246) (Show Source): You can put this solution on YOUR website!
+ 3x = 54
...

...
(x+9)(x-6)
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x = -9 or x = 6
...
since it is a positive number

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Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
If the square of a positive number is increased by 3 times the number,the result is 54.Find the number.
------------------------------
Let the number be "x":
Equation:
x^2 + 3x = 54
--------
x^2 + 3x - 54 = 0
(x+9)(x-6) = 0
----
x = -9 or x = 6
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Cheers,
Stan H.
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