SOLUTION: solve the equation by completing the perfect square. x^2 - 18x + 86 = 0 So far i got this: x^2 - 18x + 81 = -86 + 81 (x - 9)^2 = -5

Algebra ->  Equations -> SOLUTION: solve the equation by completing the perfect square. x^2 - 18x + 86 = 0 So far i got this: x^2 - 18x + 81 = -86 + 81 (x - 9)^2 = -5       Log On


   

Question 666812: solve the equation by completing the perfect square. x^2 - 18x + 86 = 0
So far i got this:
x^2 - 18x + 81 = -86 + 81
(x - 9)^2 = -5
Answer by swincher4391(1107) About Me  (Show Source):
You can put this solution on YOUR website!
You're almost there.
Take the square root of both sides and add 9 to get
9%2B-sqrt%28-5%29
or
9+%2B-+sqrt%285%29i