document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=78551>Question 78551</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Determine thed omain of <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=f%28x%29+=+%28x%5E2-3%29+%2F+%28the_square_root_of_+2x%5E3+%2B+7x%5E2+-+6x+-21%29 ALIGN=MIDDLE  ALT=\"f%28x%29+=+%28x%5E2-3%29+%2F+%28the_square_root_of_+2x%5E3+%2B+7x%5E2+-+6x+-21%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >domain \r<BR>\n" );
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document.write( "From what I learned in class I assumed I was supposed to use scientific division to find all possible zeros but I have no idea what numbers I would plug into that equation.\r<BR>\n" );
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document.write( "My deepest thanks for any help you can give, you're all life savers! :] </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #56319 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=56319\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Determine thed omain of <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=f%28x%29+=+%28x%5E2-3%29+%2F+%28the_square_root_of_+2x%5E3+%2B+7x%5E2+-+6x+-21%29 ALIGN=MIDDLE  ALT=\"f%28x%29+=+%28x%5E2-3%29+%2F+%28the_square_root_of_+2x%5E3+%2B+7x%5E2+-+6x+-21%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "You only need to look at the denominator; Since it is a radical the radicand<BR>\n" );
document.write( "must be >=0; but since it is the denominator it cannot be zero.<BR>\n" );
document.write( "So it must be 2x^3+7x^2+6x-21>0<BR>\n" );
document.write( "Graph to see where it is >0<BR>\n" );
document.write( "I get x>1.2083653<BR>\n" );
document.write( "That is the domain<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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