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September 20, 2014

September 20, 2014

Posted by **barry** on Monday, November 5, 2012 at 10:22am.

- math -
**Steve**, Monday, November 5, 2012 at 10:42am(3xy)^2 = 3^2 x^2 y^2 = 9 x^2 y^2

(2x^2z)^3 = 2^3 (x^2)^3 z^3 = 8 x^6 z^3

multiplying all that, we get

72 x^8 y^2 z^3

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