document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=85629>Question 85629</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 15x^4 - 13x^2 + 2 = 0\r<BR>\n" );
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document.write( "Solving equations in quadriatic form\r<BR>\n" );
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document.write( "please help if you can.<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #61842 by </B><A HREF=/tutors/aboutme.mpl?userid=dolly><B>dolly(163)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=dolly><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=61842\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <BR>\n" );
document.write( "15x^4 - 13x^2 + 2 = 0\r<BR>\n" );
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document.write( "15x^4 - 10 x^2 - 3x^2 + 2 = 0\r<BR>\n" );
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document.write( "==> 5x^2(3x^2 - 2) -1(3x^2 - 2) = 0\r<BR>\n" );
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document.write( "==> (3x^2 - 2) (5x^2 - 1) = 0\r<BR>\n" );
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document.write( "==> 3x^2 - 2 = 0   or 5x^2 - 1 = 0\r<BR>\n" );
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document.write( "==> x^2 = 2/3  or x^2 = 1/5\r<BR>\n" );
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document.write( "x = +/- sqrt(2/3) or x = +/- sqrt(1/5)\r<BR>\n" );
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