document.write( "Question 220158: Give the domain\r
\n" ); document.write( "\n" ); document.write( "f(x)= x^4+4/x^2+6x-16\r
\n" ); document.write( "\n" ); document.write( "Answer shows (-∞,-8)u(-8,2)u(2,∞)\r
\n" ); document.write( "\n" ); document.write( "I am coming up with (-∞,-8)u(2,∞)\r
\n" ); document.write( "\n" ); document.write( "Which is correct and why?\r
\n" ); document.write( "\n" ); document.write( "Thank you \n" ); document.write( "
Algebra.Com's Answer #165335 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
Give the domain
\n" ); document.write( "f(x)= x^4+4/x^2+6x-16
\n" ); document.write( "Factor where you can:
\n" ); document.write( "f(x)=[x^4+4]/[(x+8)(x-2)]
\n" ); document.write( "Comment: Only x=-8 and x=2 are
\n" ); document.write( "excluded from the domain. Your
\n" ); document.write( "answer does not include the values
\n" ); document.write( "of \"x\" between -8 and 2.
\n" ); document.write( "The book's answer covers all Real
\n" ); document.write( "Numbers except x=-8 and x=2, which
\n" ); document.write( "is the correct answer.
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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