SOLUTION: find the solution of x^2+4x+4=0. if the solution is a fraction enter it in simplest form. x= or x=

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: find the solution of x^2+4x+4=0. if the solution is a fraction enter it in simplest form. x= or x=      Log On


   

Question 188574: find the solution of x^2+4x+4=0. if the solution is a fraction enter it in simplest form.
x=
or
x=
Answer by jojo14344(1513) About Me  (Show Source):
You can put this solution on YOUR website!


A perfect square, x^2+4x+4=0 ---> (x+2)(x+2)=0

x=-2,
Vertex, X: x=-b%2F2a=-4%2F%282%2A1%29=-4%2F2=red%28-2%29


Substitute x=-2 in the eqn to get Y :
y=%28-2%29%5E2%2B4%28-2%29%2B4=4-8%2B4=-4%2B4=red%280%29

Vertex, (-2,0)

Y-Intercept, let fx=0;
y=%280%29%5E2%2B4%280%29%2B4=red%284%29,



Thank you,
Jojo