document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1177557>Question 1177557</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Transform the expression below into normal form. For what values of b is<BR>\n" );
document.write( "the coefficient of x equal to zero?<BR>\n" );
document.write( "(x^2+2x+b) (x^2+2x-5) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #806602 by </B><A HREF=/tutors/aboutme.mpl?userid=MathLover1><B>MathLover1(20850)</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=806602\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28x%5E2%2B2x%2Bb%29+%28x%5E2%2B2x-5%29 ALIGN=MIDDLE  ALT=\"%28x%5E2%2B2x%2Bb%29+%28x%5E2%2B2x-5%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >...multiply\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E4%2B2x%5E3-5x%5E2%2B2x%5E3%2B4x%5E2-10x%2Bbx%5E2%2B2bx-5b ALIGN=MIDDLE  ALT=\"x%5E4%2B2x%5E3-5x%5E2%2B2x%5E3%2B4x%5E2-10x%2Bbx%5E2%2B2bx-5b\"   DISABLED_style= \"max-width:90%; height:auto;\" >....rearrange\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E4+%2B+4+x%5E3+%2Bbx%5E2+-+x%5E2%2B+2bx+-+10x-+5b ALIGN=MIDDLE  ALT=\"x%5E4+%2B+4+x%5E3+%2Bbx%5E2+-+x%5E2%2B+2bx+-+10x-+5b\"   DISABLED_style= \"max-width:90%; height:auto;\" >.....group terms with <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x ALIGN=MIDDLE  ALT=\"x\"   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=x%5E4+%2B+4+x%5E3+%2Bbx%5E2+-+x%5E2%2B+2x%28b+-+5%29-+5b ALIGN=MIDDLE  ALT=\"x%5E4+%2B+4+x%5E3+%2Bbx%5E2+-+x%5E2%2B+2x%28b+-+5%29-+5b\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "the coefficient of <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x ALIGN=MIDDLE  ALT=\"x\"   DISABLED_style= \"max-width:90%; height:auto;\" > will be only equal to zero  if <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b=5 ALIGN=MIDDLE  ALT=\"b=5\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "check:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28x%5E2%2B2x%2B5%29+%28x%5E2%2B2x-5%29=x%5E4+%2B+4x%5E3+%2B+4+x%5E2+-+25 ALIGN=MIDDLE  ALT=\"%28x%5E2%2B2x%2B5%29+%28x%5E2%2B2x-5%29=x%5E4+%2B+4x%5E3+%2B+4+x%5E2+-+25\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );