Question

sqrt(x+16) - sqrt(x) - 2 = 0

Answer 1

x=25 is what I got

Answer 2

how did you get 25?

Answer 3

I figured it out is it right

Answer 4

how did you figure it was right?

Answer 5

Sub it back in to check.

Answer 6

I solved it
Using order of operations and I subbed it in I just need a second opinion please.

Answer 7

using the order of operations?

that's a lnear simplification, not an operational equation

Answer 8

Ok
I really need a straight answer someeone
I already figured it out I did the work

Answer 9

\[\sqrt{41}-\sqrt{25}-2=-0.596...\ne0\]

Answer 10

Plug in 25 for x
√(25)-16 = √(25)-2

Answer 11

x=9

Answer 12

OK can you show me the right way

Answer 13

it doesn't quite factor nicely.... so...

can you post a screenshot of the material?

Answer 14

https://www.symbolab.com/solver/step-by-step/%5Csqrt%7Bx%2B16%7D-%5Csqrt%7Bx%7D-2%3D0/?origin=button

Answer 15

hmm in short, she didn't do it

Answer 16

yeah pretty much but i got the steps to further her understanding

Answer 17

hmmm kinda like a blind leading a blind :/

Answer 18

can't argue with a calculator

Answer 19

tbh i helped her more than you

Answer 20

Thanks rebecca and jdoe please stop because you did nothing but be obnoxious

Answer 21

anyhow 9 doesn't check out

I was checking about how to factor.... doesn't quite nicely

Answer 22

no problem

we jdoe i check through 2 different calcs

Answer 23

checked *

Answer 24

2 calculators > you

Answer 25

hmmm well... yes... I'm somewhat sure the calculator is ok
but that simply means, the credit goes to the calculator, not you

either way, you're simply back to square one

but I was looking at it... and anyway... so it goes

Answer 26

I got the answer right... lol jdoe you are making a fool of yourself rn

Answer 27

LOL he blocked me right now

Answer 28

\[\sqrt{x+16}=\sqrt{x}+2\]
squaring both sides
\[x+16=x+4+4\sqrt{x}\]
\[4\sqrt{x}=16-4=12,\sqrt{x}=3,x=9\]