document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=652630>Question 652630</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 10x^-2+33x^-1-7=0\r<BR>\n" );
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document.write( "How do you solve this equation? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #408053 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=408053\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 10x^-2+33x^-1-7=0<BR>\n" );
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document.write( "It's a quadratic with variable x^-1<BR>\n" );
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document.write( "Let w = x^-1.<BR>\n" );
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document.write( "10w^2 + 33w -7 = 0\r<BR>\n" );
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document.write( "10w^2 + 35w-2w - 7 = 0<BR>\n" );
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document.write( "5w(2w+7)-(2w+7) = 0<BR>\n" );
document.write( "(2w+7)(5w-1) = 0<BR>\n" );
document.write( "w = -7/2 or w = 1/5<BR>\n" );
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document.write( "Solve for x:<BR>\n" );
document.write( "x^-1 -7/2 or x^-1 = 1/5<BR>\n" );
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document.write( "x = -2/7 or x = 5<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "================= </SPAN>\n" );
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