SOLUTION: The roots of the equation {{{x^2+bx+c=0}}} are 6 and -2.Find the values of b and c

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: The roots of the equation {{{x^2+bx+c=0}}} are 6 and -2.Find the values of b and c      Log On


   

Question 1022602: The roots of the equation x%5E2%2Bbx%2Bc=0 are 6 and -2.Find the values of b and c
Found 2 solutions by josgarithmetic, rothauserc:
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
%28x-6%29%28x-%28-2%29%29=0 and simplify and compare to x%5E2%2Bbx%2Bc=0.

Answer by rothauserc(4718) About Me  (Show Source):
You can put this solution on YOUR website!
(x-6)(x+2) = x^2 -4x -12
:
b = -4
:
c = -12
: