document.write( "Question 285968: I am still very confused on how to simplify rational expressions: This is the problem I am working on\r
\n" ); document.write( "\n" ); document.write( " x-4
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\n" ); document.write( " x^2-3x-4
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Algebra.Com's Answer #207363 by josmiceli(19441)\"\" \"About 
You can put this solution on YOUR website!
I think you're confused about what
\n" ); document.write( "is a factor and what's not.
\n" ); document.write( "Suppose you had this fraction:
\n" ); document.write( "\"%286%2A6%2A6%2A11%2A11%2A11%2A11%29%2F%28377%2A11%2A11%2A11%2A11%29\"
\n" ); document.write( "The 4 11's on top- cancel the 4 11's
\n" ); document.write( "on the bottom.
\n" ); document.write( "Now suppose you had
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\n" ); document.write( "You've still got 7 factors on top and 5 factors on the bottom
\n" ); document.write( "Each of the \"x-11\"'s is a factor and the 4 on the bottom cancel the 4 on the top.
\n" ); document.write( "Your problem is:
\n" ); document.write( "\"%28x-4%29%2F%28x%5E2+-+3x+-+4%29\"
\n" ); document.write( "The bottom factors to
\n" ); document.write( "\"%28x+-+4%29%2A%28x+%2B1%29\" so, you have
\n" ); document.write( "\"%28x-4%29%2F%28%28x-4%29%2A%28x%2B1%29%29+=+1%2F%28x%2B1%29\"
\n" ); document.write( "If your problem is factoring the denominator, you just
\n" ); document.write( "have to keep backtracking until you clear up all confusions
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