document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=853149>Question 853149</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Developing and Analyzing the Quadratic Formula \r<BR>\n" );
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document.write( "This formula, which is called the quadratic formula, can be used to find the roots for any quadratic equation of the form ax2 + bx + c = 0. The formula can be used to solve a problem such as the following: The house addresses of two neighbouring houses differ by two. Their product is 85 263. What is each address?\r<BR>\n" );
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document.write( "Purpose:<BR>\n" );
document.write( "Use the quadratic formula to find the roots of quadratic equations. \r<BR>\n" );
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document.write( "Procedure: <BR>\n" );
document.write( "A. Create a quadratic equation that can be used to determine the house addresses in the problem. <BR>\n" );
document.write( "B. Use the quadratic formula to find the roots of the quadratic equation<BR>\n" );
document.write( "C. Verify the roots in Step B by using a method presented in focus F <BR>\n" );
document.write( "D. Explain how the roots of the quadratic equation can be used to solve the problem. \r<BR>\n" );
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document.write( "I need help with all of the procedure. I completely stuck<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #513916 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=513916\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The house addresses of two neighbouring houses differ by two. Their product is 85 263. What is each address?\r<BR>\n" );
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document.write( "1st: x-1<BR>\n" );
document.write( "2nd: x+1<BR>\n" );
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document.write( "Equation:<BR>\n" );
document.write( "(x-1)(x+1) = 85,263<BR>\n" );
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document.write( "x^2 - 1 = 85,263<BR>\n" );
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document.write( "x^2 = 85,264<BR>\n" );
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document.write( "x = 292<BR>\n" );
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document.write( "x-1 = 291<BR>\n" );
document.write( "x+1 = 293<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "stan H.<BR>\n" );
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