Question

I need a little help in cube roots

Answer 1

\[\sqrt[3]{125}\]

Answer 2

125 can also be written as 5^3

Answer 3

so the answer is 5 ?

Answer 4

@kliedako Please do not give answers, it's against OpenStudy's Code-of-Conduct. We are here to guide the asker to the answer, so we need his/her participation.

http://openstudy.com/code-of-conduct

Answer 5

Do you know what a cube root is?

Answer 6

kind of

Answer 7

@iGreen , sir i am not giving any answers.

Answer 8

I just said that 125 can be re-written as 5^3

Answer 9

\(\color{blue}{\text{Originally Posted by}}\) @kliedako
125 can also be written as 5^3
\(\color{blue}{\text{End of Quote}}\)

You basically did

Answer 10

Wew, i just gave him an idea.

Answer 11

no no he didnt really

Answer 12

and im not a him

Answer 13

But if you really think that i am really giving the DIRECT answer. I'm sorry.

Answer 14

you weren't giving a direct answer -_-

Answer 15

Yes. But sir @iGreen thinks i did.

Answer 16

Anyway..

Cube roots are similar to square roots.

In square roots, we multiply the same number by itself to get a another number.

For example, 4 is the square root of 2, because 2 * 2 = 4.

Cube roots are similar, but we multiply a number by itself twice, not once like square roots do.

For example, the cube root of 729 is 9, because 9 * 9 * 9 = 729

Answer 17

Yeah, now that I look at it, it doesn't seem bad..sorry.

Answer 18

yes well..sir @iGreen must of mis-seen @kliedako

Answer 19

It's ok sir @iGreen .

Answer 20

anyways...

Answer 21

anyways @koolkat13 , now sir igreen gave you an idead about cube roots, can you now solve this problem?

Answer 22

yes its 5

Answer 23

Nice.

Answer 24

125= 5 x 5 x 5 = 5^3

Answer 25

i have 4 more that i have to do all of them i think are small like this one ..do you have time?

Answer 26

yes i have

Answer 27

ok :)

Answer 28

\[\sqrt[3]{-126}\]

Answer 29

Owh. that one is a complex number. It contains an imaginary number.

Answer 30

let's ask help from @Nnesha , can you help us here please?

Answer 31

are you sure its -126?

Answer 32

isn't it -125?

Answer 33

yes im sure....and just want to say you have awesome manners

Answer 34

:) thanks.

Answer 35

i'm gonna give you a link

http://www.regentsprep.org/regents/math/algtrig/ato6/SquareRootLes.htm

Answer 36

do you know how to factor miss?

Answer 37

i have square roots down its just cube roots

Answer 38

no

Answer 39

wait a little bit

Answer 40

ok

Answer 41

cube root of -126 is pretty complex, co'z 126 is not a perfect cube.

Answer 42

i'll give you an overview of it

http://www.wolframalpha.com/input/?i=cube+root+of+-126

Answer 43

well it has to be possible..they asked me what it is

Answer 44

@satellite73 , @ganeshie8

Answer 45

I really believe that its -125 what they meant

Answer 46

well i cant put that answer just in case they did mean -126..this is why i despise math

Answer 47

@iGreen help us sir please.

Answer 48

This would be the answer if they really meant -126
http://www.wolframalpha.com/input/?i=cube+root+of+-126

Answer 49

Do you have choices?

Answer 50

no just a box to put the answer in

Answer 51

which one ??

Answer 52

cube root of -126

Answer 53

Can you take a screen shot of it/

Answer 54

*it?

Answer 55

cube root can be written as 1/3 power