Isolating y in Equation: y^2 + 2y = -2x +2

[ACE_99]

Homework Statement

I realize this is probably a very simple question but I just can't seem to figure it out. I need to isolate the following equation for y.

y^2 + 2y = -2x +2

The Attempt at a Solution

In my solutions it says that the answer after you isolate for y you should get

y = -1 + $$\sqrt{3-2x}$$

Im not sure how they got that though.

 

[gabbagabbahey]

I assume you mean that the answer is $$y=-1 \pm \sqrt{3-2x}$$?

Your equation is quadratic in $y$, so I would use the quadratic equation.

 

[ACE_99]

Oh I totally missed that. I tried it out and it works. Thanks a lot!