Question

I need help solving...

Answer 1

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

Answer 2

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

Answer 3

x=1?

Answer 4

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

Answer 5

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

Answer 6

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