SOLUTION: Given the quadratic function f(x)=x^2 - 6x + 9 find a value of x such that f(x)= 25

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: Given the quadratic function f(x)=x^2 - 6x + 9 find a value of x such that f(x)= 25      Log On


   



Question 384666: Given the quadratic function f(x)=x^2 - 6x + 9 find a value of x such that
f(x)= 25

Answer by richard1234(7193) About Me  (Show Source):
You can put this solution on YOUR website!
We have
25 = x^2 - 6x + 9
Factoring, we obtain
25 = (x - 3)^2
One such value of x is 8 (the other one is -2).