document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1119196>Question 1119196</A>: <I><SPAN STYLE=\"word-break: break-all;\">  <BR>\n" );
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document.write( "Q10 Let us consider a function f (x) = x^3-x^2-x-8<BR>\n" );
document.write( " If f (u) = – 8, how many real values of u are there? <BR>\n" );
document.write( "A) 0<BR>\n" );
document.write( "B) 1<BR>\n" );
document.write( "C) 2<BR>\n" );
document.write( "D) 3<BR>\n" );
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document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #734665 by </B><A HREF=/tutors/aboutme.mpl?userid=greenestamps><B>greenestamps(13200)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=greenestamps><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=greenestamps><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=734665\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <br><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E3-x%5E2-x-8+=+-8 ALIGN=MIDDLE  ALT=\"x%5E3-x%5E2-x-8+=+-8\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E3-x%5E2-x+=+0 ALIGN=MIDDLE  ALT=\"x%5E3-x%5E2-x+=+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%28x%5E2-x-1%29+=+0 ALIGN=MIDDLE  ALT=\"x%28x%5E2-x-1%29+=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" ><br><BR>\n" );
document.write( "x=0 is a solution; and the discriminant of the quadratic factor is positive, so the quadratic factor has two roots.<br><BR>\n" );
document.write( "So there are 3 real solutions for f(u) = -8. </SPAN>\n" );
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