Use factoring to solve the equation for real values of the variables

z^3/2 - 2^1/2 = 0

I think i'm making it harder then it realy is please help

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- Oct 2nd 2008, 11:06 AMciviliamAnother HW Question Polynomial and Radical Equations
Use factoring to solve the equation for real values of the variables

z^3/2 - 2^1/2 = 0

I think i'm making it harder then it realy is please help - Oct 2nd 2008, 11:42 AMSean12345
Hi again civiliam,

We have . Now this leads to . Notice that to get we need to raise to the power of since we know that . Hence raising both sides of the equation to the power yields .

Hope this helps. - Oct 2nd 2008, 11:44 AMicemanfan
This is what I would do:

- Oct 2nd 2008, 11:47 AMciviliam
sorry why 2/3?

- Oct 2nd 2008, 11:49 AMicemanfan
- Oct 2nd 2008, 11:50 AMciviliam
ahh I c thank you much!

- Oct 2nd 2008, 11:54 AMciviliam
so i wrote the problem out wrong would I still work it out the same way if the 2^1/2 was z^1/2?

z^3/2 - z^1/2 = 0 - Oct 2nd 2008, 11:57 AMicemanfan
Now you can factor out .

Beginning with :

z = 0 or 1.

So the problem changes significantly. - Oct 2nd 2008, 12:02 PMciviliam
wow that was simple odd how minor changes to a problem can throw me off so easily thanks again