SOLUTION: If the square of a positive number is decreased by the number, the result is 12. What is the number?

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Question 845651: If the square of a positive number is decreased by the number, the result is 12. What is the number?
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
p is a positive number.
Translation of description: p%5E2-p=12
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Put all terms on one side (following the correct number properties).
FACTOR the trinomial.
One solution is negative and the other solution is positive.
You want the positive solution.