document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=935118>Question 935118</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If a-3b=-1/5 and a+b=15, then what is the value of the polynomial a^2-2ab-3b^2? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #568238 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=568238\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> If a-3b= -1/5<BR>\n" );
document.write( " and a+b = 15, <BR>\n" );
document.write( "then what is the value of the polynomial a^2-2ab-3b^2?<BR>\n" );
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document.write( "Subtract the top equation from the lower equation<BR>\n" );
document.write( "and solve for \"b\"::<BR>\n" );
document.write( "4b = 15 1/5<BR>\n" );
document.write( "---<BR>\n" );
document.write( "4b = 76/5<BR>\n" );
document.write( "b = 16/5<BR>\n" );
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document.write( "Solve for \"a\"::<BR>\n" );
document.write( "a + (16/5) = 75/5<BR>\n" );
document.write( "a = 59/5<BR>\n" );
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document.write( "Ans:: a^2-2ab-3b^2 = (59/5)^2 - 2(59/5)(16/5)-3(16/5)^2<BR>\n" );
document.write( "-------------------<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "------------- </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );