Use the completing the square to solve x^2+6x=12.

x= -3 ±

Step-by-step explanation:

+6x=12

We add 9 [] to both sides to complete the square as +6x+9 = .

=21

Now we take the square root of both sides:

x+3=±

x= -3 ±

x = -3 ±

Step-by-step explanation:

= 9

x + 3 =

x = -3 ±

c. prove the lengths are the same.

step-by-step explanation:

you need to prove the segments are congruent. congruent segments have the same length. find the lengths of the segments using the distance formula, and compare them.

answer: c. prove the lengths are the same.