Question

Complete the square below to solve the equation below. Check all that apply.
x^2+8x-5=15
A.X=-10
C.X=-3
D.X=-2

Answer 1

x^2+8x-5=15

x^2+8x-5+5=15+5

x^2+8x = 20


what must you add to both sides to complete the square?

Answer 2

20?

Answer 3

you were doing it with the last 5 or so problems

Answer 4

ohh my bad 8

Answer 5

you add 8 to both sides?

Answer 6

look back at your previous posts

Answer 7

half of 8=4 so +4

Answer 8

now square that

Answer 9

16

Answer 10

so you add that to both sides

Answer 11

x=-10 right

Answer 12

good, what else

Answer 13

x^2+2x-9=15