SOLUTION: Three times the square of a certain positive number exceeds six times the number by nine. Find the
number:
Algebra.Com
Question 1143690: Three times the square of a certain positive number exceeds six times the number by nine. Find the
number:
Answer by greenestamps(13200) (Show Source): You can put this solution on YOUR website!
It's a quadratic equation; set one side equal to zero and factor if possible.
or
The problem specifies a positive solution, so x=3.
CHECK:
3x^2 = 3(3^2) = 3*9 = 27
6x+9 = 6(3)+9 = 18+9 = 27
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