SOLUTION: 8 more than the square number is 9 times the number. find the number.
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Question 116038: 8 more than the square number is 9 times the number. find the number.
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
x = the number
:
Just write what it says
"8 more than the square number is 9 times the number.
x^2 + 8 = 9x
:
x^2 - 9x + 8 = 0; our old friend, the quadratic equation
(x - 1)(x - 8) = 0
x = +1
x = +8
:
Check both solutions in the original equation
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