document.write( "Question 36676: find the domain of the following functions by determining which numbers, if any, cannot be used:
\n" ); document.write( "1) f(x)=3x^2/(1+3x)
\n" ); document.write( "2) f(x)=(x^2+x-2)(x^2+4)\r
\n" ); document.write( "\n" ); document.write( "Thank you.
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Algebra.Com's Answer #22526 by stanbon(75887)\"\" \"About 
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find the domain of the following functions by determining which numbers, if any, cannot be used:
\n" ); document.write( "1) f(x)=3x^2/(1+3x)\r
\n" ); document.write( "\n" ); document.write( "The denominator cannot be zero.
\n" ); document.write( "So x cannot be -1/3. The domain is all Real numbers except x=-1/3\r
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\n" ); document.write( "\n" ); document.write( "2) f(x)=(x^2+x-2)(x^2+4) \r
\n" ); document.write( "\n" ); document.write( "This denominator is never zero
\n" ); document.write( "So, domain is all Real Numbers.\r
\n" ); document.write( "\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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