document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=22998>Question 22998</A>: <I><SPAN STYLE=\"word-break: break-all;\"> i need help with appropriate susbtitution please.the question says solve by making the appropriate substitution ex. x to the 4 power -9x squared-112+0 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #11386 by </B><A HREF=/tutors/aboutme.mpl?userid=rapaljer><B>rapaljer(4671)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=rapaljer><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=rapaljer><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=11386\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Do you mean:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E4+-9x%5E2+-+112+=+0 ALIGN=MIDDLE  ALT=\"x%5E4+-9x%5E2+-+112+=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "You need to factor this by finding two numbers whose product is 112 and whose difference is 9.  If you can't think of the combination, start at the beginning with 1:\r<BR>\n" );
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document.write( "1*112<BR>\n" );
document.write( "2* 56<BR>\n" );
document.write( "3 does not go into 112<BR>\n" );
document.write( "4* 28<BR>\n" );
document.write( "7* 16  \r<BR>\n" );
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document.write( "That's it!  There is the difference of 9!\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E4+-+9x%5E2+-112+=+0 ALIGN=MIDDLE  ALT=\"x%5E4+-+9x%5E2+-112+=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+%28x%5E2+-+16%29%28x%5E2%2B7%29=+0 ALIGN=MIDDLE  ALT=\"+%28x%5E2+-+16%29%28x%5E2%2B7%29=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2-16+=+0+ ALIGN=MIDDLE  ALT=\"x%5E2-16+=+0+\"   DISABLED_style= \"max-width:90%; height:auto;\" >  or    <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2%2B7+=+0 ALIGN=MIDDLE  ALT=\"x%5E2%2B7+=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2=16 ALIGN=MIDDLE  ALT=\"x%5E2=16\"   DISABLED_style= \"max-width:90%; height:auto;\" >  or <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2=+-7 ALIGN=MIDDLE  ALT=\"x%5E2=+-7\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=+4 ALIGN=MIDDLE  ALT=\"x=+4\"   DISABLED_style= \"max-width:90%; height:auto;\" > <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=-4 ALIGN=MIDDLE  ALT=\"x=-4\"   DISABLED_style= \"max-width:90%; height:auto;\" > <BR>\n" );
document.write( "There are no real numbers that you can square to get a negative number, so <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2=-7 ALIGN=MIDDLE  ALT=\"x%5E2=-7\"   DISABLED_style= \"max-width:90%; height:auto;\" > has no real solutions.  If you wanted complex solutions also, then the solutions of the last part would be <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=+0%2B-i+%2Asqrt%287%29+ ALIGN=MIDDLE  ALT=\"x=+0%2B-i+%2Asqrt%287%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "R^2 at SCC </SPAN>\n" );
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