## nuccioreggie one year ago Find negative square root of 16. −4 4 ±4 −8

1. nuccioreggie

I think its -4

2. anonymous

So find $\large -\sqrt{16}~?$

3. nuccioreggie

-4

4. anonymous

4

5. anonymous

6. nuccioreggie

Yes im asking am i correct

7. anonymous

im sorry I wasn't paying attention the correct answer is -4

8. anonymous

Well it doesn't have a real answer. It ends up as $\large -4*-4=16$ not $\large -4*-4=-16$ The only way to solve this is to add on an imaginary number i.

9. nuccioreggie

Yea so its A correct?

10. anonymous

Well what is $\large -4^{2}~?$

11. MrNood

it is not $\sqrt{-16}$ it is $-\sqrt{16}$ (well even this is not quite true sqrt 16 is +4 or -4 the negative of those is obvious BUT -sqrt(16) is still +4 OR -4

12. MrNood

@LegendarySadist there is no need for imaginary solutions here