## yoyogators 2 years ago negative the square root of nine equals negative nine negative three 3 9

1. Yahoo!

$\sqrt{-9}$

2. Yahoo!

$i = \sqrt{-1}$

3. yoyogators

so its 9?

4. Yahoo!

$= 3i$

5. Yahoo!

$\sqrt{-9} = \sqrt{-1} * \sqrt{9}$ $\sqrt{9} = 3$

6. yoyogators

so its 3?

7. TomLikesPhysics

$-\sqrt{9}=(-1)*\sqrt{9}=(-1)*3=-3 and \it is also equal \to (-1)*(-3)=3$

8. TomLikesPhysics

most of the time people just want the postive number if you take the squareroot - so if only one answer is correct I would take -3

9. jazy

$-\sqrt{9}\ or\ \sqrt{-9}?$

10. jazy

@yoyogators which is it?

11. yoyogators

Okay so the answer is 3

12. cornitodisc

$-\sqrt{9}$

13. jazy

Depending which of the two square roots you are referring to... if its$\sqrt{-9}$then yes.

14. jazy

If it's $-\sqrt{9}$ then it's like saying $-1 \times \sqrt{9}$

15. jazy

$\sqrt{9} = 3$3 * -1 = negative 3