document.write( "Question 436209: What i the domain of the rational expression f(x)= x-5 over 2x+3
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Algebra.Com's Answer #301799 by nerdybill(7384)\"\" \"About 
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What i the domain of the rational expression f(x)= x-5 over 2x+3
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\n" ); document.write( "The \"domain\" specifies the range of numbers for x.
\n" ); document.write( "x can assume all numbers except when denominator is zero.
\n" ); document.write( "so set 2x+3 to zero and solve for x (only value x can't take):
\n" ); document.write( "2x+3 = 0
\n" ); document.write( "2x = -3
\n" ); document.write( "x = -3/2
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\n" ); document.write( "domain then is all real numbers except -3/2
\n" ); document.write( "or
\n" ); document.write( "(-oo, -3/2) U (-3/2, +oo)
\n" ); document.write( "where oo is infinity
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