document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=672198>Question 672198</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find all the zeros of each equation<BR>\n" );
document.write( "x^5 – 3x^4 – 15x^3 + 45x^2 – 16x + 48 = 0 \r<BR>\n" );
document.write( "\n" );
document.write( "And the awnsers it can be are:\r<BR>\n" );
document.write( "\n" );
document.write( "A: 3, 4, i<BR>\n" );
document.write( "B: 4, –4, i,–i<BR>\n" );
document.write( "C: 3, 4, –4, i, –i<BR>\n" );
document.write( "D: 3, –4, –i\r<BR>\n" );
document.write( "\n" );
document.write( "So can someone help me I can't figure out which one it would be. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #417828 by </B><A HREF=/tutors/aboutme.mpl?userid=nerdybill><B>nerdybill(7384)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=nerdybill><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=nerdybill><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=417828\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Find all the zeros of each equation<BR>\n" );
document.write( "x^5 – 3x^4 – 15x^3 + 45x^2 – 16x + 48 = 0<BR>\n" );
document.write( "And the awnsers it can be are:<BR>\n" );
document.write( "A: 3, 4, i<BR>\n" );
document.write( "B: 4, –4, i,–i<BR>\n" );
document.write( "C: 3, 4, –4, i, –i<BR>\n" );
document.write( "D: 3, –4, –i <BR>\n" );
document.write( ".<BR>\n" );
document.write( "Use synthetic division...<BR>\n" );
document.write( ".<BR>\n" );
document.write( "x^5 – 3x^4 – 15x^3 + 45x^2 – 16x + 48 = 0<BR>\n" );
document.write( "Testing 3 as a solution...<BR>\n" );
document.write( "3  | 1  -3  -15   45  -16  48<BR>\n" );
document.write( "         3    0  -45    0 -48<BR>\n" );
document.write( "    -------------------------------<BR>\n" );
document.write( "     1   0  -15    0  -16   0<BR>\n" );
document.write( ".<BR>\n" );
document.write( "x^4 + 0x^3 - 15x^2 + 0x -16<BR>\n" );
document.write( "Testing 4 as a solution...<BR>\n" );
document.write( ".<BR>\n" );
document.write( "4  | 1  0  -15   0  -16<BR>\n" );
document.write( "        4   16   4   16<BR>\n" );
document.write( "    -------------------------------<BR>\n" );
document.write( "     1  4    1   4    0<BR>\n" );
document.write( ".<BR>\n" );
document.write( "x^3 + 4x + x + 4<BR>\n" );
document.write( ".<BR>\n" );
document.write( "Testing -4 as a solution...<BR>\n" );
document.write( "-4  | 1  4   1   4<BR>\n" );
document.write( "        -4   0  -4<BR>\n" );
document.write( "     ------------------<BR>\n" );
document.write( "      1  0   1   0<BR>\n" );
document.write( ".<BR>\n" );
document.write( "x^2 + 1<BR>\n" );
document.write( "set to zero:<BR>\n" );
document.write( "x^2 + 1 = 0<BR>\n" );
document.write( "x^2 = -1<BR>\n" );
document.write( "x = +-i<BR>\n" );
document.write( ".<BR>\n" );
document.write( "answer: c\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "  </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );