document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=240936>Question 240936</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How do you solve the following quadratic equations:\r<BR>\n" );
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document.write( "-6(u+5)^2=120\r<BR>\n" );
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document.write( "3s^2-1=7s^2 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #176485 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=176485\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> How do you solve the following quadratic equations: <BR>\n" );
document.write( "-6(u+5)^2=120<BR>\n" );
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document.write( "(u+5)^2 = -20<BR>\n" );
document.write( "u+5 = 2isqrt(5) or -2isqrt(5)<BR>\n" );
document.write( "u = -5+2isqrt(5) or u = -5-2isqrt(5)<BR>\n" );
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document.write( "3s^2-1=7s^2<BR>\n" );
document.write( "4s^2 = -1<BR>\n" );
document.write( "s^2 = -1/4<BR>\n" );
document.write( "s = i/2 or s = -i/2<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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