document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=813967>Question 813967</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please show mw how to solve for r in the given equation. A=P(1+r)(1+r) if A=2420 and P=2000 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #490261 by </B><A HREF=/tutors/aboutme.mpl?userid=TimothyLamb><B>TimothyLamb(4379)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=TimothyLamb><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=TimothyLamb><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=490261\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A = P(1+r)(1+r) if A=2420 and P=2000<BR>\n" );
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document.write( "A = P(1+r)(1+r)<BR>\n" );
document.write( "A = P(rr + 2r + 1)<BR>\n" );
document.write( "A = Prr + P2r + P<BR>\n" );
document.write( "2420 = 2000rr + 4000r + 2000<BR>\n" );
document.write( "2000rr + 4000r - 420 = 0<BR>\n" );
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document.write( "the above quadratic equation is in standard form, with a=2000, b=4000, and c=-420<BR>\n" );
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document.write( "to solve the quadratic equation, plug this:<BR>\n" );
document.write( "2000 4000 -420<BR>\n" );
document.write( "into this: https://sooeet.com/math/quadratic-equation-solver.php<BR>\n" );
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document.write( "the roots (solutions) of the quadratic are:<BR>\n" );
document.write( "r = 0.1<BR>\n" );
document.write( "r = -2.1<BR>\n" );
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document.write( "Solve and graph linear equations:<BR>\n" );
document.write( "https://sooeet.com/math/linear-equation-solver.php<BR>\n" );
document.write( "---<BR>\n" );
document.write( "Solve quadratic equations, quadratic formula:<BR>\n" );
document.write( "https://sooeet.com/math/quadratic-formula-solver.php<BR>\n" );
document.write( "---<BR>\n" );
document.write( "Convert fractions, decimals, and percents:<BR>\n" );
document.write( "https://sooeet.com/math/fraction-decimal-percent.php<BR>\n" );
document.write( "---<BR>\n" );
document.write( "Calculate and graph the linear regression of any data set:<BR>\n" );
document.write( "https://sooeet.com/math/linear-regression.php </SPAN>\n" );
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