document.write( "Question 1150670: If f(x)= 4(1-x)/(1-1/x), find a simplified expression for f(-1/x). \n" ); document.write( "

Algebra.Com's Answer #772094 by greenestamps(13200) $\"\"$ $\"About$

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\n" ); document.write( "Replace each \"x\" with \"-1/x\" and simplify....

\n" ); document.write( " $\"%284%281-%28-1%2Fx%29%29%29%2F%281-1%2F%28-1%2Fx%29%29\"$

\n" ); document.write( " $\"%284%281%2B1%2Fx%29%29%2F%281%2Bx%29\"$

\n" ); document.write( " $\"%284%28%28x%2B1%29%2Fx%29%29%2F%28x%2B1%29\"$

\n" ); document.write( " $\"4%2Fx\"$

\n" ); document.write( "ANSWER: f(-1/x) = 4/x

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