Please hurry.
Use the method of completing the square.
2x2+2x+1=0

Answer

x=-5/2

Step-by-step explanation:

2×2+2x+1=0

4+2x+1=0(2×2=4)

4+1+2x=0

5+2x=0

2x=-5

x=-5/2

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.

2 over 5

step-by-step explanation:

the 2: 3 ratio is the length of the ac segment to the cb segment total length. this implies that the ratio between segment ac length and segment ab length is 2: 5. point c is 2/5 from a to b, so the required fraction is 2/5.