problem with rational exponent

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Can someone evaluate this problem My answer just doesn't seem right.

Any help is appreciated

(2x^3 y1/3)^6 (z^-2/3xy^-1)

64x^18 y^2 3xy^1/z^2

(64)(3)x^19y^3/z^2= 192x^19y^3/z^2

 

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I scanned the problem to eliminate confusion

 

[Deleted member 4993]

I scanned the problem to eliminate confusion

So do you think Jeff solved your problem?

If he did - which would that be?

 

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I believe it is the second solution, in which i had it correct

 

[Deleted member 4993]

I believe it is the second solution, in which i had it correct

Correct....

 

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Thanks for the help guys. Its greatly appreciated