document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=957430>Question 957430</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Solve using the quadratic formula.<BR>\n" );
document.write( "9n squared + 4 +7n </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #585072 by </B><A HREF=/tutors/aboutme.mpl?userid=MathLover1><B>MathLover1(20849)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=MathLover1><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=MathLover1><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=585072\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <BR>\n" );
document.write( "if you need to solve <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=9n%5E2+%2B+4+%2B7n ALIGN=MIDDLE  ALT=\"9n%5E2+%2B+4+%2B7n\"   DISABLED_style= \"max-width:90%; height:auto;\" > first make it equal to zero\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=9n%5E2+%2B+4+%2B7n=0 ALIGN=MIDDLE  ALT=\"9n%5E2+%2B+4+%2B7n=0\"   DISABLED_style= \"max-width:90%; height:auto;\" >....rearrange terms\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=9n%5E2%2B7n+%2B+4+=0 ALIGN=MIDDLE  ALT=\"9n%5E2%2B7n+%2B+4+=0\"   DISABLED_style= \"max-width:90%; height:auto;\" > ....compare to general form <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=ax%5E2%2Bbx+%2Bc+=0 ALIGN=MIDDLE  ALT=\"ax%5E2%2Bbx+%2Bc+=0\"   DISABLED_style= \"max-width:90%; height:auto;\" >, you see that <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a=9 ALIGN=MIDDLE  ALT=\"a=9\"   DISABLED_style= \"max-width:90%; height:auto;\" >, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b=7 ALIGN=MIDDLE  ALT=\"b=7\"   DISABLED_style= \"max-width:90%; height:auto;\" >, and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=c=4 ALIGN=MIDDLE  ALT=\"c=4\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "now plug it in quadratic formula \r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=n+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+ ALIGN=MIDDLE  ALT=\"n+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" > \r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=n+=+%28-7+%2B-+sqrt%287%5E2-4%2A9%2A4+%29%29%2F%282%2A9%29+ ALIGN=MIDDLE  ALT=\"n+=+%28-7+%2B-+sqrt%287%5E2-4%2A9%2A4+%29%29%2F%282%2A9%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" > \r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=n+=+%28-7+%2B-+sqrt%2849-144+%29%29%2F18+ ALIGN=MIDDLE  ALT=\"n+=+%28-7+%2B-+sqrt%2849-144+%29%29%2F18+\"   DISABLED_style= \"max-width:90%; height:auto;\" > \r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=n+=+%28-7+%2B-+sqrt%28-95+%29%29%2F18+ ALIGN=MIDDLE  ALT=\"n+=+%28-7+%2B-+sqrt%28-95+%29%29%2F18+\"   DISABLED_style= \"max-width:90%; height:auto;\" > \r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=n+=+%28-7+%2B-+sqrt%2895+%29%2Ai%29%2F18+ ALIGN=MIDDLE  ALT=\"n+=+%28-7+%2B-+sqrt%2895+%29%2Ai%29%2F18+\"   DISABLED_style= \"max-width:90%; height:auto;\" > \r<BR>\n" );
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document.write( "exact solutions:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=n+=+%28-7+%2B+sqrt%2895+%29%2Ai%29%2F18+ ALIGN=MIDDLE  ALT=\"n+=+%28-7+%2B+sqrt%2895+%29%2Ai%29%2F18+\"   DISABLED_style= \"max-width:90%; height:auto;\" > \r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=n+=+%28-7+-+sqrt%2895+%29%2Ai%29%2F18+ ALIGN=MIDDLE  ALT=\"n+=+%28-7+-+sqrt%2895+%29%2Ai%29%2F18+\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "approximate solutions:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=n+=+-7%2F18+%2B+9.75%2Ai%2F18+ ALIGN=MIDDLE  ALT=\"n+=+-7%2F18+%2B+9.75%2Ai%2F18+\"   DISABLED_style= \"max-width:90%; height:auto;\" > =><IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=n+=+-0.39+%2B+0.54%2Ai+ ALIGN=MIDDLE  ALT=\"n+=+-0.39+%2B+0.54%2Ai+\"   DISABLED_style= \"max-width:90%; height:auto;\" > \r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=n+=+-7%2F18+-+sqrt%2895+%29%2Ai%2F18+ ALIGN=MIDDLE  ALT=\"n+=+-7%2F18+-+sqrt%2895+%29%2Ai%2F18+\"   DISABLED_style= \"max-width:90%; height:auto;\" >=><IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=n+=+-0.39+-+0.54%2Ai+ ALIGN=MIDDLE  ALT=\"n+=+-0.39+-+0.54%2Ai+\"   DISABLED_style= \"max-width:90%; height:auto;\" > \r<BR>\n" );
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document.write( " </SPAN>\n" );
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