document.write( "Question 348745: How do I write the domain of a function in set notation?\r
\n" ); document.write( "\n" ); document.write( "Math problem:\r
\n" ); document.write( "\n" ); document.write( "f(x)=(x^2 + 16)/x^2 - 3x - 28\r
\n" ); document.write( "\n" ); document.write( "I have that the number that should be excluded from the domain is \"7\"\r
\n" ); document.write( "\n" ); document.write( "But I do not know how to write the domain of the function in set notation?\r
\n" ); document.write( "\n" ); document.write( "Thank you
\n" ); document.write( "

Algebra.Com's Answer #249306 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
How do I write the domain of a function in set notation?
\n" ); document.write( "Math problem:
\n" ); document.write( "f(x)=(x^2 + 16)/x^2 - 3x - 28
\n" ); document.write( "I have that the number that should be excluded from the domain is \"7\"
\n" ); document.write( "-------
\n" ); document.write( "Factor where you can:
\n" ); document.write( "f(x) = (x^2+16)/[(x-7)(x+4)]
\n" ); document.write( "-----
\n" ); document.write( "\"7\" and \"-4\" are excluded
\n" ); document.write( "-----
\n" ); document.write( "Domain: (-oo,-4)U(4,7)U(7,+oo)
\n" ); document.write( "================================
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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