document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=238836>Question 238836</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hello,Well im stuck on this Quadratic formula.I really need your help, because I tried to do it my self but im not doing it right I guess because the answer im getting is not the answers provided. Can you help me please?\r<BR>\n" );
document.write( "\n" );
document.write( "Problem:x^2-8x+30=0\r<BR>\n" );
document.write( "\n" );
document.write( "My work:a=1, b=-8, c=30<BR>\n" );
document.write( "x=[8+-(-8^(2)-4(1)(30))^(1/2)]/2(1)<BR>\n" );
document.write( "=[8+-(64-120)^(1/2)]/2<BR>\n" );
document.write( "=[8+-(-56)^(1/2)]/2<BR>\n" );
document.write( "=[8+-2i(14)^(1/2)]/2<BR>\n" );
document.write( "=4+-i(14)^(1/2)\r<BR>\n" );
document.write( "\n" );
document.write( "My options:<BR>\n" );
document.write( "A.) -4+4i,-4-4i<BR>\n" );
document.write( "B.)4+4i,4-4i<BR>\n" );
document.write( "C.)4+8i,4-8i<BR>\n" );
document.write( "D.)-4+8i,-4-8i </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #175499 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=175499\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Problem:x^2 -8x + 30 = 0<BR>\n" );
document.write( "My work:a=1, b=-8, c=30<BR>\n" );
document.write( ":<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+=+%28-%28-8%29+%2B-+sqrt%28-8%5E2-4%2A1%2A30+%29%29%2F%282%2A1%29+ ALIGN=MIDDLE  ALT=\"x+=+%28-%28-8%29+%2B-+sqrt%28-8%5E2-4%2A1%2A30+%29%29%2F%282%2A1%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( ":<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+=+%288+%2B-+sqrt%2864+-+120+%29%29%2F2+ ALIGN=MIDDLE  ALT=\"x+=+%288+%2B-+sqrt%2864+-+120+%29%29%2F2+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( ":<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+=+%288+%2B-+sqrt%28-56+%29%29%2F2+ ALIGN=MIDDLE  ALT=\"x+=+%288+%2B-+sqrt%28-56+%29%29%2F2+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( ":<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+=+%288+%2B-+sqrt%28-4%2A14%29%29%2F2+ ALIGN=MIDDLE  ALT=\"x+=+%288+%2B-+sqrt%28-4%2A14%29%29%2F2+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( ":<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+=+%288+%2B-+2i%2Asqrt%2814%29%29%2F2+ ALIGN=MIDDLE  ALT=\"x+=+%288+%2B-+2i%2Asqrt%2814%29%29%2F2+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( ":<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+=+4+%2B-+i%2Asqrt%2814%29+ ALIGN=MIDDLE  ALT=\"x+=+4+%2B-+i%2Asqrt%2814%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" >; I got the same thing you got<BR>\n" );
document.write( ":<BR>\n" );
document.write( "Hey!<BR>\n" );
document.write( "We can prove it, find the equation using our solution:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+=+4+%2B-+i%2Asqrt%2814%29+ ALIGN=MIDDLE  ALT=\"x+=+4+%2B-+i%2Asqrt%2814%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( ":<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+-+4+=+i%2Asqrt%2814%29+ ALIGN=MIDDLE  ALT=\"x+-+4+=+i%2Asqrt%2814%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( ":<BR>\n" );
document.write( "Square both sides<BR>\n" );
document.write( "(x-4)^2 = i^2(14)<BR>\n" );
document.write( "Which is<BR>\n" );
document.write( "x^2 - 8x + 16 = -1(14)<BR>\n" );
document.write( "x^2 - 8x + 16 = -14<BR>\n" );
document.write( "x^2 - 8x + 16 + 14 = 0<BR>\n" );
document.write( "x^2 - 8x + 30 = 0; does that look familiar?<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );