katlin95 solve for x: sqrt x+16 - sqrt x-2=0 A. 3 B. 7 C. 9 D. 15 one year ago one year ago

1. katlin95

@jim_thompson5910 i got 9

2. electrokid

It cannot be this way! $\sqrt{x+16}-\sqrt{x-2}=0$

3. katlin95

so what would be my answer then?

4. electrokid

is the question the way I wrote?

5. katlin95

yep

6. electrokid

if the question is exactly like I wrote, then there can be no solution for it!

7. katlin95

for the second part the sqrt is only over 2x

8. electrokid

check the question and use the equation editor below to enter the equation

9. katlin95

I mean x lol

10. electrokid

see..!!

11. electrokid

so, like this?$\sqrt{x+16}-\sqrt{x}-2=0$

12. katlin95

yes:)

13. jim_thompson5910

if the equation is $\sqrt{x+16}-\sqrt{x}-2=0$, then the answer is x = 9 like you got katlin95, so congrats

14. electrokid

then yes.