document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=76361>Question 76361</A>: <I><SPAN STYLE=\"word-break: break-all;\"> PLEASE HELP ME!!!<BR>\n" );
document.write( "question: The area of a circle is given by A = pi(4x^2 + 12x + 9. Find the expression for the radius of the circle.     <BR>\n" );
document.write( "H_E_L_P!!! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #54792 by </B><A HREF=/tutors/aboutme.mpl?userid=Earlsdon><B>Earlsdon(6294)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Earlsdon><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=54792\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The area of a circle is given by:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A+=+%28pi%29%284x%5E2%2B12x%2B9%29 ALIGN=MIDDLE  ALT=\"A+=+%28pi%29%284x%5E2%2B12x%2B9%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "As you probably know,the formula for the area of a circle is:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A+=+%28pi%29r%5E2 ALIGN=MIDDLE  ALT=\"A+=+%28pi%29r%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Set these two equal to each other:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28pi%29r%5E2+=+%28pi%29%284x%5E2%2B12x%2B9%29 ALIGN=MIDDLE  ALT=\"%28pi%29r%5E2+=+%28pi%29%284x%5E2%2B12x%2B9%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > Divide both sides by <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28pi%29 ALIGN=MIDDLE  ALT=\"%28pi%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r%5E2+=+4x%5E2%2B12x%2B9 ALIGN=MIDDLE  ALT=\"r%5E2+=+4x%5E2%2B12x%2B9\"   DISABLED_style= \"max-width:90%; height:auto;\" > Now factor the right-hand side.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r%5E2+=+%282x%2B3%29%5E2 ALIGN=MIDDLE  ALT=\"r%5E2+=+%282x%2B3%29%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" > Take the square root of both sides.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r+=+2x%2B3 ALIGN=MIDDLE  ALT=\"r+=+2x%2B3\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );