Posted by Jessie on Friday, January 7, 2011 at 7:19pm.
remember that x^(-a) = 1/x^a
and a^0 - 1 for all a>0
4^-1x^0/y^-1
= (1/4)(x^0)(1/y)
= (1/4)(1)(1/y)
= 1/(4y)
(they should not have written the answer as 1/4y , it would mean (1/4) y )
The way you explained it, I can understand it-the way my teacher explained it-I was still confused
Thank you very much
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