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posted by Dawn on Thursday, February 9, 2012 at 4:28pm.

c^8d^-12 ________ c^-4d^-8

c^8d^-12 / c^-4d^-8 =c^(8-(-4)) d^(-12 - (-8)) =c^12 d^-4 = c^12/d^4

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