P.nut1996 2 years ago I need help solving...

1. P.nut1996

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

2. JonathanJ

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

3. P.nut1996

x=1?

4. JonathanJ

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

5. P.nut1996

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

6. P.nut1996

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