document.write( "Question 149850: Please help me with the following ptoblem:\r
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Algebra.Com's Answer #109984 by nerdybill(7384)\"\" \"About 
You can put this solution on YOUR website!
Remember: x^-1 can be rewritten as 1/x
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\n" ); document.write( "4^-1 - 2^-1
\n" ); document.write( "= 1/4 - 1/2
\n" ); document.write( "= 1/4 - 2/4
\n" ); document.write( "= -1/4
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