## ExtremeAnon Group Title -4√(x+9)=20 one year ago one year ago

1. ExtremeAnon Group Title

$\LARGE -4\sqrt{x+9} = 20$

2. ExtremeAnon Group Title

3. myininaya Group Title

Divide both sides by -4 to get the radical containing x by itself.

4. myininaya Group Title

Then ask yourself can you ever have the square root of something have a negative output?

5. ExtremeAnon Group Title

I don't know what I would get if I did that because I don't know how to divide with a square root or anything like that...

6. ExtremeAnon Group Title

7. Fools101 Group Title

Hi ^_^ are we trying to fine x?

8. robert1 Group Title

no soluction

9. pkjha3105 Group Title

x ll hve imaginary value.....there is no real sol. of x..

10. Fools101 Group Title

that was i was thinking that why i was asking!

11. ExtremeAnon Group Title

Yes trying to find X & so there's no solution? Why?

12. Fools101 Group Title

So let's say you have an equation that's 2x=2x. Of course that one is obvious. When you divide by x (you're not supposed to do that because you lose a 0), you get 2=2, which means all solutions work. A little less obvious is 64x=(4^2)*4x. That will also get you 64=64 or x=x depending on which way you divide. This also means all solutions. I think!