-4√(x+9)=20

Question

-4√(x+9)=20

anonymous · Answer

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

anonymous · Answer

Help, please?

myininaya · Answer

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

myininaya · Answer

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

anonymous · Answer

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...

anonymous · Answer

@pkjha3105 ? Any help please?

fools101 · Answer

Hi ^_^ are we trying to fine x?

anonymous · Answer

no soluction

anonymous · Answer

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

fools101 · Answer

that was i was thinking that why i was asking!

anonymous · Answer

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

fools101 · Answer

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!