document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=278735>Question 278735</A>: <I><SPAN STYLE=\"word-break: break-all;\"> This question deals with solving Equations that are reducible to Quadratic Equations section:  The question wants me to solve an equation that is quadratic in form. The question is y^4-5y^2+4=0, I think next step is to make (y^2)^2-5(y^2)+4=0, not sure what to do next </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #202842 by </B><A HREF=/tutors/aboutme.mpl?userid=scott8148><B>scott8148(6628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=scott8148><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=scott8148><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=202842\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> factoring ___ (y^2 - 4) (y^2 - 1) = 0\r<BR>\n" );
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document.write( "factoring again ___ (y + 2) (y - 2) (y + 1) (y - 1) = 0\r<BR>\n" );
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document.write( "y = ±2, ±1 </SPAN>\n" );
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