## anonymous one year ago y+8x= 2x squared +1 solve using complete square

1. anonymous

@freckles

2. pooja195

Can you screenshot the question?

3. anonymous

no i can't sorry

4. pooja195

I'm not sure what the question is asking.... @zzr0ck3r ??

5. anonymous

y+8x= 2x squared +1

6. anonymous

y+8x= 2x squared +1 solve using complete the square

7. pooja195

y+8x= 2x^1?

8. anonymous

y+8x= 2x^2 +1?

9. pooja195

is that the question?

10. anonymous

yes

11. pooja195

@zzr0ck3r im not sure can u help with this one please? :)

12. Astrophysics

$y=2x^2-8x+1$ now you may go ahead and complete the square

13. anonymous

i got x^2 -8x+32=15 not sure how to factor that

14. Astrophysics

$x^2+ax=0$ we can do the following $x^2+\frac{ 2ax }{ 2 } + \left( \frac{ a }{ 2 } \right)^2-\left( \frac{ a }{ 2 } \right)^2=0$

15. Astrophysics

That's completing the square

16. anonymous

how do we get the x values

17. Astrophysics

|dw:1442277314632:dw|

18. Astrophysics

The -8 and +1 were originally inside the brackets so when we take it out we have to multiply by 2, you can finish it off, by factoring what's inside the parenthesis

19. Astrophysics

I don't know how you got that

20. anonymous

I am confused on what to do next

21. anonymous

2(x-2)^2=-7

22. Astrophysics

It should = y+7 not -7