## jose1970 Group Title 2x^2+2x-6=0 2 years ago 2 years ago

1. AnimalAin

Remove the common factor first; after that, it will be easy to factor.

2. benice

you might have to use the - b formula

3. jose1970

im sorry, its completing the square

4. AnimalAin

Completing the square: $2x^2+2x-6=0$$x^2+x=3$$x^2+x+1/4=3+1/4$$(x+1/2)^2=13/4$$x+1/2=\pm \sqrt{13}/2$$x=-1/2 \pm \sqrt{13}/2$

5. AnimalAin

I guess it wouldn't have factored that well.....

6. jose1970

thanks, i have another one if you don't mind 3x^2+6x-5=0