document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=27668>Question 27668</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Geometry.  A square has sides of length 3x - 2 cm.  Express the area of the square as a polynomial.\r<BR>\n" );
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document.write( "I have no idea.  Please help.\r<BR>\n" );
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document.write( "Thanks. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #15036 by </B><A HREF=/tutors/aboutme.mpl?userid=sdmmadam@yahoo.com><B>sdmmadam@yahoo.com(530)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=sdmmadam@yahoo.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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=15036\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A square has sides of length 3x - 2 cm.  <BR>\n" );
document.write( "Express the area of the square as a polynomial.<BR>\n" );
document.write( " A square is a quadrilateral with all its sides equal and each angle a right angle that is 90 degrees.<BR>\n" );
document.write( "If a square has side  y cms, then its area is given by y^2 sq cms<BR>\n" );
document.write( "Therefore given that y = (3x-2)cms<BR>\n" );
document.write( "The area of the given square is (3x-2)^2 sq cms<BR>\n" );
document.write( " = (3x)^2 + 2(3x)X(-2) + (-2)^2  [using the formula (a+b)^2 =a^2 +2ab + b^2 ]<BR>\n" );
document.write( " =  9x^2 -12x + 4<BR>\n" );
document.write( "Answer: (9x^2 -12x + 4) sq cms  <BR>\n" );
document.write( "Note: You may write (3x-2)^2 as<BR>\n" );
document.write( "(3x-2)(3x-2) = (3x)(3x-2)-2(3x-2)=(3x)^2-6x-6x +4 = 9x^2 -12x +4 <BR>\n" );
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