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ExtremeAnonBest ResponseYou've already chosen the best response.1
\[\LARGE 4\sqrt{x+9} = 20\]
 one year ago

myininayaBest ResponseYou've already chosen the best response.0
Divide both sides by 4 to get the radical containing x by itself.
 one year ago

myininayaBest ResponseYou've already chosen the best response.0
Then ask yourself can you ever have the square root of something have a negative output?
 one year ago

ExtremeAnonBest ResponseYou've already chosen the best response.1
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...
 one year ago

ExtremeAnonBest ResponseYou've already chosen the best response.1
@pkjha3105 ? Any help please?
 one year ago

Fools101Best ResponseYou've already chosen the best response.1
Hi ^_^ are we trying to fine x?
 one year ago

pkjha3105Best ResponseYou've already chosen the best response.0
x ll hve imaginary value.....there is no real sol. of x..
 one year ago

Fools101Best ResponseYou've already chosen the best response.1
that was i was thinking that why i was asking!
 one year ago

ExtremeAnonBest ResponseYou've already chosen the best response.1
Yes trying to find X & so there's no solution? Why?
 one year ago

Fools101Best ResponseYou've already chosen the best response.1
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!
 one year ago
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