document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=24374>Question 24374</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I am taking college Algebra for the first time and since math has always been my worst subject I need all the help I can get. I thank you in advance for all your help.\r<BR>\n" );
document.write( "\n" );
document.write( "Using the quadratic equation x squared -4x-5=0, perform the following tasks:\r<BR>\n" );
document.write( "\n" );
document.write( "Solve by factoring: (I got x=5 or x=1)\r<BR>\n" );
document.write( "\n" );
document.write( "Solve by completing the square: \r<BR>\n" );
document.write( "\n" );
document.write( "Solve by using the quadratic formula:\r<BR>\n" );
document.write( "\n" );
document.write( "I submitted this before but never recieved an answer back. I think I may have submitted it wrong. Again thank you for your help. BTW this is all part of the first question. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #12959 by </B><A HREF=/tutors/aboutme.mpl?userid=yhtong><B>yhtong(11)</B></A><img src=\"/images/stars/stars-06.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=yhtong><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=12959\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Ok, heres what you do. Your questions is x²-4x-5=0\r<BR>\n" );
document.write( "\n" );
document.write( "By factorizing<BR>\n" );
document.write( "x²-4x-5=0<BR>\n" );
document.write( "(x-5)(x+1)=0 <BR>\n" );
document.write( "and there would be two answers<BR>\n" );
document.write( "1)	x-5=0<BR>\n" );
document.write( "        x=5<BR>\n" );
document.write( "2)	x+3=0<BR>\n" );
document.write( "         x=-1\r<BR>\n" );
document.write( "\n" );
document.write( "By completing of square <BR>\n" );
document.write( "x²-4x-5=0<BR>\n" );
document.write( "x²-4x    =+5<BR>\n" );
document.write( "x²-4x+(4/2)²=5+(4/2)²<BR>\n" );
document.write( "x²-4x+(2)²   =5+(2)²<BR>\n" );
document.write( "(x-2)(x-2)    =5+4<BR>\n" );
document.write( "         (x-2)²  =9<BR>\n" );
document.write( "          x-2     = +or- (square root of 9)<BR>\n" );
document.write( "          x-2     =+or-(3)<BR>\n" );
document.write( " and there will be 2 answers as well<BR>\n" );
document.write( "1)x=3+2<BR>\n" );
document.write( "   x=5<BR>\n" );
document.write( "2)x=-3+2<BR>\n" );
document.write( "   x=-1\r<BR>\n" );
document.write( "\n" );
document.write( "By formula.<BR>\n" );
document.write( "Formula of to solve the above equation is\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+=+%28--4+%2B-sqrt%28+-4%5E2-4%2A1%2A-5+%29%29%2F%282%2A1%29+ ALIGN=MIDDLE  ALT=\"x+=+%28--4+%2B-sqrt%28+-4%5E2-4%2A1%2A-5+%29%29%2F%282%2A1%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "=<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+=+%28%2B4+%2B-sqrt%28+16%2B20%29%29%2F%282%29+ ALIGN=MIDDLE  ALT=\"x+=+%28%2B4+%2B-sqrt%28+16%2B20%29%29%2F%282%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "=<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+=+%284+%2B-sqrt%28+36+%29%29%2F%282%29+ ALIGN=MIDDLE  ALT=\"x+=+%284+%2B-sqrt%28+36+%29%29%2F%282%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "=(4+or-6)/2<BR>\n" );
document.write( "this also got 2 answers as well<BR>\n" );
document.write( "1)x=(4+6)/2<BR>\n" );
document.write( "  x=10/2<BR>\n" );
document.write( "  x=5\r<BR>\n" );
document.write( "\n" );
document.write( "2)x=(4-6)/2<BR>\n" );
document.write( "  x=-2/2<BR>\n" );
document.write( "  x=-1\r<BR>\n" );
document.write( "\n" );
document.write( "therefore your answers are 5 or -1<BR>\n" );
document.write( "(dont be surprised that i am a secondary pure science stream student)<BR>\n" );
document.write( "yh_tong </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );