document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=141938>Question 141938</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 16000(1+r)squared=25000<BR>\n" );
document.write( "I know that the value of r is .25 but I found that through trial and error. can you help me figure out the equation used to solve for r and get .25?? thank you </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #103366 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=103366\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 16000(1+r)^2 = 25000<BR>\n" );
document.write( ":<BR>\n" );
document.write( "Divide both sides by 16000<BR>\n" );
document.write( "(1+r)^2 = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=25000%2F16000 ALIGN=MIDDLE  ALT=\"25000%2F16000\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(1+r)^2 = 1.5625<BR>\n" );
document.write( "FOIL<BR>\n" );
document.write( "1 + 2r + r^2 = 1.5625<BR>\n" );
document.write( ":<BR>\n" );
document.write( "r^2 + 2r + 1 - 1.5625 = 0<BR>\n" );
document.write( "A quadratic equation:<BR>\n" );
document.write( "r^2 + 2r - .5625 = 0<BR>\n" );
document.write( "Solve this using the quadratic formula; a=1, b=2, c=-.5625<BR>\n" );
document.write( ":<BR>\n" );
document.write( "You will get two solutions: r = +.25, and r = -2.25 </SPAN>\n" );
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