document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=570835>Question 570835</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I am having a hard time solving this equation quadratic in form: <BR>\n" );
document.write( "9x(to the 4th power)=85x(squared)-196.<BR>\n" );
document.write( "I know it then becomes 9x(to the 4th power)-85x(squared)+196=0.<BR>\n" );
document.write( "Then u = x squared. So then it becomes 9u squared-85u+196=0 <BR>\n" );
document.write( "Now I'm stuck on how to solve the equation from here because I don't think I factor here??? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #367796 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=367796\">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=9x%5E4-85x%5E2%2B196=0 ALIGN=MIDDLE  ALT=\"9x%5E4-85x%5E2%2B196=0\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "u=x^2\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=9u%5E2-85u%2B196=0 ALIGN=MIDDLE  ALT=\"9u%5E2-85u%2B196=0\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "In such problems you can solve by quadratic formula or completing the squares\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=9u%5E2-85u%2B%2885%2F6%29%5E2=+-196+%2B+%2885%2F6%29%5E2 ALIGN=MIDDLE  ALT=\"9u%5E2-85u%2B%2885%2F6%29%5E2=+-196+%2B+%2885%2F6%29%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=9u%5E2-85u%2B%2885%2F6%29%5E2=+-196+%2B+%287225%2F36%29 ALIGN=MIDDLE  ALT=\"9u%5E2-85u%2B%2885%2F6%29%5E2=+-196+%2B+%287225%2F36%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%283u-%2885%2F6%29%29%5E2=%28-7056%2B7225%29%2F%2836%29 ALIGN=MIDDLE  ALT=\"%283u-%2885%2F6%29%29%5E2=%28-7056%2B7225%29%2F%2836%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3u-85%2F6%29%5E2=%28169%2F36%29 ALIGN=MIDDLE  ALT=\"3u-85%2F6%29%5E2=%28169%2F36%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "Take the square root on both sides\r<BR>\n" );
document.write( "\n" );
document.write( "3u-85/6 = -/-(13/6)\r<BR>\n" );
document.write( "\n" );
document.write( "3u=85/6 + 13/6<BR>\n" );
document.write( "3u=98/6<BR>\n" );
document.write( "u=98/18\r<BR>\n" );
document.write( "\n" );
document.write( "OR\r<BR>\n" );
document.write( "\n" );
document.write( "3u= 85/6 -13/6<BR>\n" );
document.write( "3u=72/6<BR>\n" );
document.write( "u=72/18<BR>\n" );
document.write( "u=4\r<BR>\n" );
document.write( "\n" );
document.write( "when u = 4 , x=+/-2<BR>\n" );
document.write( "when u=98/18 =====> 49/9===>x=sqrt(49/9)====>+/- 7/3\r<BR>\n" );
document.write( "\n" );
document.write( "m.ananth@hotmail.ca\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );