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Posted by saya on Wednesday, June 27, 2012 at 12:20pm.

simplify. express answer with positive exponents only. (-2x^-5y^4z^2)-3

(-2x^-5y^4z^2)^-3 multiply all the exponents by -3 to get -2^-3 x^15 y^-12 z^-6 -x^15/(8 y^12 z^6)

Xto the 5th power next to Xto the negative 3 power?

(3xy-2)2 x3

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