document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=749486>Question 749486</A>: <I><SPAN STYLE=\"word-break: break-all;\"> consider triangle ABC, where the picture is here http://oi44.tinypic.com/xyge8.jpg<BR>\n" );
document.write( "1. let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=DELTA ALIGN=MIDDLE  ALT=\"DELTA\"   DISABLED_style= \"max-width:90%; height:auto;\" >ADF be the area of the triangle ADF, then<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=DELTA ALIGN=MIDDLE  ALT=\"DELTA\"   DISABLED_style= \"max-width:90%; height:auto;\" ><IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=ADF%2F%28AG%2AAE%29=+%28A%29 ALIGN=MIDDLE  ALT=\"ADF%2F%28AG%2AAE%29=+%28A%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "2. when BD=4 and CF=2, then BC=(B) and x satisfies the equation<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2+%2BCx+-D+=0 ALIGN=MIDDLE  ALT=\"x%5E2+%2BCx+-D+=0\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "solving this equation , we have<BR>\n" );
document.write( "AD = (E)<BR>\n" );
document.write( "solve for A,B,C,D, and E </SPAN>\n" );
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