document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=64502>Question 64502</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help!\r<BR>\n" );
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document.write( "1.)  Find all zeros(both real and complex) of the function f(x)=x^4+4x^2-5\r<BR>\n" );
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document.write( "2.) Will sells used 4-wheelers and bicycles. He currently has 46 of these machines for sale. If there are 146 wheels on all of these machines, how many 4-wheelers and how many bicycles does Will have for sale?\r<BR>\n" );
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document.write( "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 #45119 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=45119\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Find all zeros(both real and complex) of the function f(x)=x^4+4x^2-5<BR>\n" );
document.write( "=(x^2+5)(x^2-1)<BR>\n" );
document.write( "=(x+isqrt5)(x-isqrt5)(x+1)(x-1)<BR>\n" );
document.write( "Zeroes are 1,-1,isqrt5,-isqrt5<BR>\n" );
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document.write( "2.) Will sells used 4-wheelers and bicycles. He currently has 46 of these machines for sale. If there are 146 wheels on all of these machines, how many 4-wheelers and how many bicycles does Will have for sale?\r<BR>\n" );
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document.write( "Let # of 4-wheelers be W and # of bicycles be B:<BR>\n" );
document.write( "B+W=46<BR>\n" );
document.write( "2B+4W=146<BR>\n" );
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document.write( "B=46-W<BR>\n" );
document.write( "2(46-W)+ 4W=146<BR>\n" );
document.write( "92-2W+4W=146<BR>\n" );
document.write( "2W=54<BR>\n" );
document.write( "W=27 (# of 4-Wheelers)<BR>\n" );
document.write( ")B=46-27=19 (# of bicycles)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.\r<BR>\n" );
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