document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=671593>Question 671593</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hello me and my friend are having trouble finding the zeros of a polynomial function\r<BR>\n" );
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document.write( "P(x)=2x(x^2+9)(x^2-2)\r<BR>\n" );
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document.write( "we foiled everything out to P(x)=x^4+7x^2+2x-18\r<BR>\n" );
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document.write( "and then we tried finding our P/Q and using synthetic division to get a zero, but we couldn't get the right answer. The answer is supposed to be 0,+-sqrt(2)\r<BR>\n" );
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document.write( "Thanks in advance for the help. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #417481 by </B><A HREF=/tutors/aboutme.mpl?userid=mananth><B>mananth(16946)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mananth><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/cgi-bin/show-face.mpl?user=mananth><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=417481\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=P%28x%29=2x%28x%5E2%2B9%29%28x%5E2-2%29 ALIGN=MIDDLE  ALT=\"P%28x%29=2x%28x%5E2%2B9%29%28x%5E2-2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "take the square root\r<BR>\n" );
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document.write( "x^2+(7/2) = +-(11/2)\r<BR>\n" );
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document.write( "x^2= (11/2)-(7/2) OR (-11/2)-(7/2)\r<BR>\n" );
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document.write( "x^2=2  OR -9  \r<BR>\n" );
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document.write( "x=sqrt(2),-sqrt(2), 0,  3i\r<BR>\n" );
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document.write( " </SPAN>\n" );
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