## anonymous one year ago help for medal

1. anonymous

Using the following equation, find the center and radius of the circle. You must show all work and calculations to receive credit. x2 + 2x + y2 + 4y = 20

2. anonymous

help with what?

3. anonymous

@ganeshie8

4. anonymous

oh, ok

5. anonymous

@ganeshie8

6. anonymous

@jf04

7. anonymous

Wait a moment, I need to figure it out.

8. freckles

$u^2+ku+(\frac{k}{2})^2 \\ =(u+\frac{k}{2})^2$

9. anonymous

jf after you get done helping him an you help me plz?

10. freckles

we are going to need to complete the squares

11. freckles

$x^2+2x+?=(x+\frac{?}{2})^2$ look at the formula above in tell me what the ? needs to be

12. anonymous

ok, samuel

13. anonymous

I got the answer thanks doe