document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=340283>Question 340283</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please, can anyone help me solve the following problem.  Thank you.\r<BR>\n" );
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document.write( "What positive value of k will the expression 9x^2 +kx + 25 factor into the form(ax+b)^2 for some real number a and some real number b?   </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #243816 by </B><A HREF=/tutors/aboutme.mpl?userid=mananth><B>mananth(16946)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mananth><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=mananth><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=243816\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 9x^2 +kx + 25<BR>\n" );
document.write( "..<BR>\n" );
document.write( "(3x)^2+kx+5^2<BR>\n" );
document.write( "2*3*5 = 30<BR>\n" );
document.write( "so k=30<BR>\n" );
document.write( "(x^2+30x+25 <BR>\n" );
document.write( "(3x+5)^2<BR>\n" );
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