lelecatgirl41 lelecatgirl41
  • 16-11-2020
  • Mathematics
contestada

Solve the equation x2 + 4x + 4 = 0​

Respuesta :

djwhitewolf
djwhitewolf djwhitewolf
  • 16-11-2020

Answer:

(

x

−

2

)

(

x

−

2

)

=

0

x

=

2

Explanation:

To factor the expression you need to find factors of 4 which add up to 4.

The signs will be the same (because of +4), they are both minus (because of -4x).

2

×

2

=

4

and

2

+

2

=

4

(

x

−

2

)

(

x

−

2

)

=

0

Now that we have the factors, we can solve:

If

x

−

2

=

0

, then  

x

=

2

(Sorry if confusing, it wouldnt let me write it out how i wanted to..)

Answer Link

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