SOLUTION: Five times a number is 6 less than the square of the number. What is the number?

Algebra ->  Quadratic Equations and Parabolas -> SOLUTION: Five times a number is 6 less than the square of the number. What is the number?      Log On


   

Question 1197049: Five times a number is 6 less than the square of the number. What is the number?
Answer by josgarithmetic(39625) About Me  (Show Source):
You can put this solution on YOUR website!
For the number, n
the description is literally
5n=n%5E2-6.

n%5E2-5n-6=0
%28n-6%29%28n%2B1%29=0

n=-1 or n=6.






-----------------------
check:
5(-1)=(-1)^2-6
-5=1-6
-5=-5
-
5*6=6^2-6
30=30