document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=773594>Question 773594</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How do you determine the domain of f(x)=(x-1)(x+4) ? Thank you! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #471675 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=471675\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> How do you determine the domain of f(x)=(x-1)(x+4) ?<BR>\n" );
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document.write( "You start by assuming the domain is \"All Real Numbers\".<BR>\n" );
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document.write( "Then you look for elements in the Rule that restrict values of \"x\", such as:<BR>\n" );
document.write( "1. even root symbols:: sqrt(x) or sqrt(x-7) or 4th root of(x) etc.<BR>\n" );
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document.write( "2. log(x) or ln(x-3) elements that have restricted domains<BR>\n" );
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document.write( "3. factors in the denominator that cannot be zero<BR>\n" );
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document.write( "4. There are others but 1,2,3 are the common restrictors.<BR>\n" );
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document.write( "Your problem has none of these restrictors so the domain is \"All Real Numbers\".<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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