## jessica824 2 years ago how do you find the real cube roots of -64?

1. itsmylife

you cant , its a complex number if your going for root of it

2. confusedstudent2012

i think it will be 8 i

3. itsmylife

nope

4. itsmylife

4i

5. itsmylife

4*4*4=64 but still thats a complex number

6. confusedstudent2012

yes, i was thinking sqaure for some reason. 4i

7. jessica824

thank you!!

8. confusedstudent2012

but that's an imaginary number not a "real" root

9. itsmylife

;)

10. jessica824

11. itsmylife

4 is cube root of 64 and since its -64 so its an imaginary number i never said its real

12. itsmylife

n @jessica824 you can find it

13. jessica824

i dont know how

14. confusedstudent2012

no, i wasn't saying you said anything. I was responding the the original question from the original poster where the person asked about a "real" root.

15. zepdrix

@itsmylife -4 should be the cube root of -64.\[\large (-4)(-4)(-4)=-64\] I'm not sure why you're thinking it would be complex, did you confuse it with the square root? :o\[\large (4i)(4i)(4i)=-64i\]

16. itsmylife

aha my honest mistake thanks for correcting me @zepdrix

17. zepdrix

Happens to all of us c: those darn brain farts! heh

18. itsmylife

lol :P