SOLUTION: five times a number is 6 less than the square of the number. what is the number?

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: five times a number is 6 less than the square of the number. what is the number?       Log On


   

Question 1087814: five times a number is 6 less than the square of the number. what is the number?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
+5n+=+n%5E2+-+6+
+n%5E2+-+5n+-+6+=+0+
+%28+n+-+6+%29%2A%28+n+%2B+1+%29+=+0+ ( by looking at it )
+n+=+6+ ( the other solution gives me a negative result )
The number is 6
------------------
check:
+6%5E2+-+5%2A6+-+6+=+0+
+36+-+30+-+6+=+0+
+36+-+36+=+0+
OK