SOLUTION: I appologize in advance for the way this problem is typed, the square root sign cannot be cut & pasted. solve: zx^-4 (sqrt)X (yz^4)^3 / DIVIDED BY

Question 677750: I appologize in advance for the way this problem is typed, the square root sign cannot be cut & pasted.
solve:

zx^-4 (sqrt)X (yz^4)^3
/ DIVIDED BY

Z^7xy

I came up with a horrible answer, 2916. My math work must have gone wrong some where?
Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!

....square both nominator and denominator to eliminate from nominator

.

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