document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=18338>Question 18338</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 1. Find the value of C if 2xy-6x+7y+c is factorable </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #8781 by </B><A HREF=/tutors/aboutme.mpl?userid=Earlsdon><B>Earlsdon(6294)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Earlsdon><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=8781\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Find the value of c that will make <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2xy-6x%2Bc ALIGN=MIDDLE  ALT=\"2xy-6x%2Bc\"   DISABLED_style= \"max-width:90%; height:auto;\" > factorable.\r<BR>\n" );
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document.write( "Try factoring by grouping.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%282xy-6x%29+%2B+%287y%2Bc%29 ALIGN=MIDDLE  ALT=\"%282xy-6x%29+%2B+%287y%2Bc%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > Factor 2x from the left set of parentheses.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2x%28y-3%29+%2B+%287y%2Bc%29 ALIGN=MIDDLE  ALT=\"2x%28y-3%29+%2B+%287y%2Bc%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >  Factor a 7 from the second set of parentheses.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2x%28y-3%29+%2B+7%28y%2Bc%2F7%29 ALIGN=MIDDLE  ALT=\"2x%28y-3%29+%2B+7%28y%2Bc%2F7%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > Now set <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28y%2Bc%2F7%29+=+%28y-3%29 ALIGN=MIDDLE  ALT=\"%28y%2Bc%2F7%29+=+%28y-3%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > and solve for c.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y%2Bc%2F7+=+y-3 ALIGN=MIDDLE  ALT=\"y%2Bc%2F7+=+y-3\"   DISABLED_style= \"max-width:90%; height:auto;\" > Subtract y from both sides. <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=c%2F7+=+-3 ALIGN=MIDDLE  ALT=\"c%2F7+=+-3\"   DISABLED_style= \"max-width:90%; height:auto;\" > Multiply both sides by 7.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=c+=+-21 ALIGN=MIDDLE  ALT=\"c+=+-21\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Answer: c = -21\r<BR>\n" );
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document.write( "Check: Factor by grouping;\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%282xy-6x%29%2B%287y-21%29+=+2x%28y-3%29+%2B+7%28y-3%29 ALIGN=MIDDLE  ALT=\"%282xy-6x%29%2B%287y-21%29+=+2x%28y-3%29+%2B+7%28y-3%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%282x%2B7%29%28y-3%29 ALIGN=MIDDLE  ALT=\"%282x%2B7%29%28y-3%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >  </SPAN>\n" );
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