document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=703243>Question 703243</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How to find the root? Can you send me the answer and show me the steps to solve the problem. Thank you, Freda\r<BR>\n" );
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document.write( "1.   solve 4x^4 = 12x^2.\r<BR>\n" );
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document.write( "2.   solve x^4 - 30x^2+ 125.\r<BR>\n" );
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document.write( "3.   solve x^2 -1 = 0.\r<BR>\n" );
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document.write( "4.   solve -2x + 1>7. \r<BR>\n" );
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document.write( "5.   evaluate(1/2)^3.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #433391 by </B><A HREF=/tutors/aboutme.mpl?userid=Simnepi><B>Simnepi(216)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Simnepi><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=Simnepi><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=433391\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 1.<BR>\n" );
document.write( "divide both sides by the greatest factor they share, which is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4x%5E2 ALIGN=MIDDLE  ALT=\"4x%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "giving<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%284x%5E4%29%2F%284x%5E2%29=%2812x%5E2%29%2F%284x%5E2%29 ALIGN=MIDDLE  ALT=\"%284x%5E4%29%2F%284x%5E2%29=%2812x%5E2%29%2F%284x%5E2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > <BR>\n" );
document.write( "simplifying gives<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2=3 ALIGN=MIDDLE  ALT=\"x%5E2=3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "take square roots to give<BR>\n" );
document.write( "x=<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%283%29 ALIGN=MIDDLE  ALT=\"sqrt%283%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "2.<BR>\n" );
document.write( "I'm not sure how to do this one i suggest you re-post the question.<BR>\n" );
document.write( "3.<BR>\n" );
document.write( "This is the same as <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2-1%5E2 ALIGN=MIDDLE  ALT=\"x%5E2-1%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "this is known as 'the difference of two perfect squares' and is factorised like this<BR>\n" );
document.write( "(x+1)(x-1).<BR>\n" );
document.write( "(If you had a different square number , <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2-9 ALIGN=MIDDLE  ALT=\"x%5E2-9\"   DISABLED_style= \"max-width:90%; height:auto;\" > it would factorise like<BR>\n" );
document.write( "(x+3)(x-3).)<BR>\n" );
document.write( "so <BR>\n" );
document.write( "(x+1)(x-1)=0<BR>\n" );
document.write( "therefore<BR>\n" );
document.write( "(x+1)=0 or (x-1)=0<BR>\n" );
document.write( "so x= -1 or x= 1<BR>\n" );
document.write( "4.<BR>\n" );
document.write( "treat inequalities like equations!<BR>\n" );
document.write( "-2x+1>7<BR>\n" );
document.write( "-2x>6 (subtracting 1 from both sides)<BR>\n" );
document.write( "x>-3 (dividing both sides by -2)<BR>\n" );
document.write( "5.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%281%2F2%29%5E3 ALIGN=MIDDLE  ALT=\"%281%2F2%29%5E3\"   DISABLED_style= \"max-width:90%; height:auto;\" >= <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%281%5E3%29%2F%282%5E3%29 ALIGN=MIDDLE  ALT=\"%281%5E3%29%2F%282%5E3%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "giving<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2F8 ALIGN=MIDDLE  ALT=\"1%2F8\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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