SOLUTION: This one is tough for me, any help is appreciated: {{{(x^7y^4z^0)/(5^-2x^3y^-8z^-9)^2}}}

SOLUTION: This one is tough for me, any help is appreciated: {{{(x^7y^4z^0)/(5^-2x^3y^-8z^-9)^2}}}

Algebra.Com

Question 83164: This one is tough for me, any help is appreciated:

Answer by Mona27(45) (Show Source): You can put this solution on YOUR website!
First try expanding the bottom bracket (if I understand correctly the last number you put down was a power of 2)
This means that each power in the bottom expression will be multiplied by 2:

Next deal with the numbers:

Then terms in x:

Then terms in y:

And finally z:

So it all becomes

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