# Question #96c10

##### 1 Answer

Sep 19, 2017

this equation can indeed be factored into (x + 2)(x + 2)

#### Explanation:

A quadratic equation can only be factored if

in this example

a = 1

b = 4 and

c = 4

so

0 is a perfect square

So the equation can be factored.

(x + 2)(x +2) = 0 has solution only where x + 2 = 0

this occurs where x = -2

We call this a double root because both factors are identical. If you were to plot the graph of y =