## anonymous 5 years ago square root of -7 and the square root of -7 equals what?

1. anonymous

49

2. anonymous

-7...

3. anonymous

its 49

4. anonymous

If this is the question $\sqrt{-7}\sqrt{-7}$

5. anonymous

time each other yes

6. anonymous

7

7. anonymous

$\sqrt{7}(i ^{2})=-7$

8. anonymous

oops that should be a square root of 7 squared

9. anonymous

oops that should be a square root of 7 squared$(\sqrt{7})^{2}i ^{2}=-7$

10. anonymous

oh ok thanks

11. anonymous

$\sqrt{-7}*\sqrt{-7}$ $\sqrt{(-7)(-7)}$ $\sqrt{49}$ =7

12. anonymous

no corec...

13. anonymous

take i out of the radical first.

14. anonymous

the square root of seven is $\sqrt{7}$ not $\sqrt{-7}$, so 7 is not the solution.

15. anonymous

-7 is.

16. anonymous

Does anyone see this?