SOLUTION: I have been given a problem from a classmate that I find hard to figure. I need to write a quadratic equation that has the solution of: x=5 or x=-5 I am beginning to understand h

Algebra ->  Algebra  -> Quadratic Equations and Parabolas -> SOLUTION: I have been given a problem from a classmate that I find hard to figure. I need to write a quadratic equation that has the solution of: x=5 or x=-5 I am beginning to understand h      Log On

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 Question 432549: I have been given a problem from a classmate that I find hard to figure. I need to write a quadratic equation that has the solution of: x=5 or x=-5 I am beginning to understand how to work quadratics however I am not sure how to do this. Can someone help?Found 2 solutions by algebrahouse.com, ewatrrr:Answer by algebrahouse.com(1079)   (Show Source): You can put this solution on YOUR website!"I have been given a problem from a classmate that I find hard to figure. I need to write a quadratic equation that has the solution of: x=5 or x=-5 I am beginning to understand how to work quadratics however I am not sure how to do this. Can someone help?" Start from the solution and work towards the equation x = 5, x = -5 x - 5 = 0 or x + 5 = 0 {subtracted 5 and added 5, respectively} (x - 5)(x + 5) = 0 {multiplied together and set equal to 0} x² - 25 = 0 {used foil method} www.algebrahouse.com Answer by ewatrrr(10682)   (Show Source): You can put this solution on YOUR website! ``` Hi The factor theorem states that a polynomial f(x) has a factor (x -k) if and only if f(k) = 0. quadratic with x=5 or x=-5 being its solutions f(x) = (x-5)(x+5) f(x) = x^2 - 25 ```