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Posted by Anonymous on Sunday, January 23, 2011 at 3:09pm.

use only positive exponents in answer 2u^-9 x^-7 y^-4 * 7u^9 * 3y^-1 x

2U^-9X^-7Y^-4 * 7U^9 * 3XY^-1. 42U^0X^-6Y^-5= 42 / X^6Y^5.

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