document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=139645>Question 139645</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the side of a square with an area of 625 ft.^2 by using a quadratic equation. I know that to find the area of a square you do length times width and all sides of a square are equal so I found the square root of 625, which was 25. But I am not sure on how to solve this problem using a quadratic equation. Thanks!!  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #101801 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=101801\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let each side of the square be \"x\".<BR>\n" );
document.write( "EQUATION:<BR>\n" );
document.write( "Area = x^2 = 625<BR>\n" );
document.write( "x^2 = 625<BR>\n" );
document.write( "x^2-625 = 0<BR>\n" );
document.write( "(x-25)(x+25)= 0<BR>\n" );
document.write( "Positive answer:<BR>\n" );
document.write( "x = 25<BR>\n" );
document.write( "=============<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );