document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=524208>Question 524208</A>: <I><SPAN STYLE=\"word-break: break-all;\"> please help me solve this. I am not so good at word problems.<BR>\n" );
document.write( "The monthly profit in dollars that Carla makes on the sale of x automobiles is determined by the formula p=x^2 -4x-5. What values of x is her profit positive? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #347676 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=347676\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> p=x^2-4x-5\r<BR>\n" );
document.write( "\n" );
document.write( "find the roots<BR>\n" );
document.write( "equate to 0\r<BR>\n" );
document.write( "\n" );
document.write( "x^2-4x-5=0<BR>\n" );
document.write( "x^2-5x+x-5=0<BR>\n" );
document.write( "x(x-5)+1(x-5)=0\r<BR>\n" );
document.write( "\n" );
document.write( "(x-5)(x+1)=0<BR>\n" );
document.write( "x= 5 OR -1\r<BR>\n" );
document.write( "\n" );
document.write( "-1 is not possible \r<BR>\n" );
document.write( "\n" );
document.write( "so she has to sell more than 5 cars to make a profit </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );