## anonymous 3 years ago I need help solving...

1. anonymous

$3\sqrt{x+4}-2=13$

2. anonymous

First, get the radical by itself. $\sqrt{x+4} = 5$ Now square both sides, then solve for the x.

3. anonymous

x=1?

4. anonymous

Not exactly, first you want to square both sides $\sqrt{x+4} = 5$ $x+4 = 25$ x = 21

5. anonymous

Oh, I see! I wasn't sure what you meant by "both sides" ;P

6. anonymous

21+4=25 so it all makes sense ;P