SOLUTION: Use a graph to estimate the solutions of the equation. Check the solution algebraically. x^2+12x+20=0

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: Use a graph to estimate the solutions of the equation. Check the solution algebraically. x^2+12x+20=0      Log On


   

Question 436173: Use a graph to estimate the solutions of the equation. Check the solution algebraically.
x^2+12x+20=0
Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
x^2+12x+20=0
x=1 y=32
x=-1y=9
x=2,y=48
x=-2,y=0
x=-10,y=0
x-12,y=20

x^2+12x+20
x^2+10x+2x+20
x(x+10)+2(x+10)
(x+10)(x+2)