document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=94023>Question 94023</A>: <I><SPAN STYLE=\"word-break: break-all;\"> NEED HELP PLEASE!!!!!!!<BR>\n" );
document.write( "Need to find all roots usingthe rational root theorem - OMG\r<BR>\n" );
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document.write( "f(x)= 2x^2 + 5x -4<BR>\n" );
document.write( "Thanks so much<BR>\n" );
document.write( "llo </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #68444 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=68444\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> f(x)= 2x^2 + 5x -4<BR>\n" );
document.write( "That Theorem says if P/q is a rational root of f(x) \"q\" is a divisor of -4 and<BR>\n" );
document.write( "\"p\" is a divisor of 2.<BR>\n" );
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document.write( "q candidates: +-1, +-2, +-4<BR>\n" );
document.write( "p candidates: +-1, +-2<BR>\n" );
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document.write( "I checked the quadratic formula.<BR>\n" );
document.write( "There are no rational roots for this function.<BR>\n" );
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document.write( "x = [-5+-sqrt(25-4*2*-4)]/4<BR>\n" );
document.write( "x = [-5+-sqrt(57)]/4<BR>\n" );
document.write( "None of these roots is rational.<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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