Question

Can someone please help me solve this problem? It's in the attachment below.

Answer 1

The first thing to do is to subtract 1 from both sides. Why do we do this? So we can get the square root all by itself.


We're undoing the +1


\[\Large \sqrt{x+8}+1 = 9\]
\[\Large \sqrt{x+8}+1-1 = 9-1\]
\[\Large \sqrt{x+8} = 8\]


What comes next?

Answer 2

no, think of what we need to do to undo that square root

Answer 3

how do u make that arrow thing? I don't see it on my keyboard

Answer 4

arrow thing? oh you mean ^ ?

Answer 5

shift+6

Answer 6

I mean the thing overtop the x+8

Answer 7

oh the square root sign? you can type `sqrt(x+8)` to mean \(\Large \sqrt{x+8}\)

Answer 8

ok thanks I figured it out its C

Answer 9

Hopefully you squared both sides? Then subtracted 8 from both sides?