Question

0 = x2 + 8x + 4

How do I solve with completing the square? :(

Answer 1

Do you have an image of it?

Answer 2

No. o_O

Answer 3

Ok I might be wrong but fist we gotta find out what x equals

Answer 4

Lets work backwards:
reverse the +4 with -4, and do it to both sides [so 0-4=x2+8x]
then it gets a bit more confusing

Answer 5

Divide -4 [the 0-4] by 8, then add that answer to the back of the answer [that means if the answer is -8, we put: 0 - 4 + -8] try to calculate it.

Answer 6

Then it gets more trippy. after that, you must divide the present answer so far by 2, then putting what you get from the division to add on to the original answer [so lets say 0 - 4 + -8 + 5]. P.S. the last two integers are example, and not the actual ones needed.

Answer 7

Ok you should now have the equation:
0 - 4 + -0.5 + -0.25
Lets work it out.
-4 + -0.5 + -0.25
-4.5 + -0.25
-4.75

Answer 8

X=-4.75

Answer 9

Ah, I see.

Answer 10

That should be all that you need.

Answer 11

Thank you. :)

Answer 12

np