Question

What is the value of -81^(1/4)

Answer 1

this is really: \[\sqrt[4]{-81}\]

Answer 2

-3

Answer 3

langrangeson, when i put it in my calculator it won't do it

J3553, I got that when I put -81^.25 but -3times-3=9 9times-3=-27 -27times-3=81 not -81

Answer 4

That's why I'm so confused

Answer 5

-81^1/4 = (-1)^1/4 x (81)^1/4

now, -1 = i^2

so -81^1/4 = i^1/2 x 3

i^1/2 = 1/sqrt(2) x(1+i)

Answer 6

What just happened??????

Answer 7

Someone please help!

Answer 8

calm down everything will be okay, do you still need help?

Answer 9

Yes! Look at the third post.

Answer 10

okay, this is what we will do, first we factor out the negative in the form of -1

Answer 11

Ok, I just need to get it straight whether it's neg or pos 3, so lets do this

Answer 12

OH! I think I get where you're going with this!

Answer 13

right, so what i meant to type is :\[-1*\sqrt[4]{81}\]

Answer 14

Ok! Thank you so much!

Answer 15

now just do your thing from there