document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=62193>Question 62193</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help me to solve y^3-4y^2-64y+256=0 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #43004 by </B><A HREF=/tutors/aboutme.mpl?userid=tutorcecilia><B>tutorcecilia(2152)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=tutorcecilia><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=tutorcecilia><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=43004\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> y^3-4y^2-64y+256=0 [factor by grouping]<BR>\n" );
document.write( "(y^3-4y^2)-(64y+256)=0<BR>\n" );
document.write( "y^2(y-4)-64(y-4)<BR>\n" );
document.write( "(y^2-64)(y-4)=o [set each factor equal to zero and solve]<BR>\n" );
document.write( "y^2-64=0<BR>\n" );
document.write( "sqrt(y^2)=sqrt(64)<BR>\n" );
document.write( "y=+-8<BR>\n" );
document.write( "and y-4=0<BR>\n" );
document.write( "y=4<BR>\n" );
document.write( ".<BR>\n" );
document.write( "check by plugging each value of y back into the formula and solve.  the answer should be zero. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );