document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=895278>Question 895278</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the real solution by factoring \r<BR>\n" );
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document.write( "X^4 = x^2<BR>\n" );
document.write( "X to the fourth equals x to the second </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #542706 by </B><A HREF=/tutors/aboutme.mpl?userid=harpazo><B>harpazo(655)</B></A><img src=\"/images/stars/stars-11.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=harpazo><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=harpazo><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=542706\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x^4 = x^2\r<BR>\n" );
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document.write( "x^4 - x^2 = 0\r<BR>\n" );
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document.write( "x^2(x^2 - 1) = 0\r<BR>\n" );
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document.write( "Set each factor to zero and solve for x.\r<BR>\n" );
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document.write( "x^2 = 0\r<BR>\n" );
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document.write( "Take the square root of both sides.\r<BR>\n" );
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document.write( "sqrt{x^2) = sqrt{0}\r<BR>\n" );
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document.write( "x = 0\r<BR>\n" );
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document.write( "Do the same thing to the other factor.\r<BR>\n" );
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document.write( "x^2 - 1 = 0\r<BR>\n" );
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document.write( "x^2 = 1\r<BR>\n" );
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document.write( "sqrt{x^2} = sqrt{1}\r<BR>\n" );
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document.write( "x = +1 and x = -1\r<BR>\n" );
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document.write( "The real SOLUTIONS are the following values for x: -1, 0 and 1.\r<BR>\n" );
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document.write( "Did you follow? </SPAN>\n" );
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