## True or False?

Quadratic equations and inequalities, variation equations, function notation, systems of equations, etc.

### True or False?

TehNyanCat

Posts: 7
Joined: Wed Jun 15, 2011 8:01 pm

### Re: True or False?

TehNyanCat wrote:$\mbox{True or false:}$

$\left(54x^{-3}y^9 z^7)^{(1/3)}\, =\, 3\sqrt[3]{2}x^{-1} y^3 z^{(2/3)}$

if 7 & 2 r rite, then wat do U think?

little_dragon

Posts: 179
Joined: Mon Dec 08, 2008 5:18 pm

### Re: True or False?

little_dragon wrote:
TehNyanCat wrote:$\mbox{True or false:}$

$\left(54x^{-3}y^9 z^7)^{(1/3)}\, =\, 3\sqrt[3]{2}x^{-1} y^3 z^{(2/3)}$

if 7 & 2 r rite, then wat do U think?

"7 and 2"? I'm a bit confused...
The furthest I can go is $\sqrt[3]{54x^{-3}y^9 z^7}$.
TehNyanCat

Posts: 7
Joined: Wed Jun 15, 2011 8:01 pm

### Re: True or False?

I think the previous poster was referring to the powers on the variable "z". How did you do the simplification in your first post? If you could show us your steps, it will be easier to explain what is going on. Thank you!

maggiemagnet

Posts: 289
Joined: Mon Dec 08, 2008 12:32 am

### Re: True or False?

maggiemagnet wrote:I think the previous poster was referring to the powers on the variable "z". How did you do the simplification in your first post? If you could show us your steps, it will be easier to explain what is going on. Thank you!

The thing is, I didn't simplify the problem at all. It was like that originally.
TehNyanCat

Posts: 7
Joined: Wed Jun 15, 2011 8:01 pm

### Re: True or False?

TehNyanCat wrote:The thing is, I didn't simplify the problem at all. It was like that originally.

Okay; then do the simplification yourself, and see if you get what they got. It would be helpful to pay particular attention to the powers on the variable "z", like the first reply suggested.

maggiemagnet

Posts: 289
Joined: Mon Dec 08, 2008 12:32 am