document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=325374>Question 325374</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I do not understand how to find the zeros of a function. The following is the problem that is giving me problems.If you could help I would be much appreciative.\r<BR>\n" );
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document.write( "f(x)=x^2+3x-10\r<BR>\n" );
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document.write( "thanks<BR>\n" );
document.write( "becca </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #233006 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=233006\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> f(x)=x^2+3x-10 <BR>\n" );
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document.write( "Ways to find zeroes:<BR>\n" );
document.write( "1. graphing<BR>\n" );
document.write( "2. factoring<BR>\n" );
document.write( "3. Quadratic equation<BR>\n" );
document.write( "-===========================<BR>\n" );
document.write( "Your Problem factors nicely:<BR>\n" );
document.write( "Think of 2 numbers whose product is -10 <BR>\n" );
document.write( "and whose sum is 3.<BR>\n" );
document.write( "The numbers are +5 and -2<BR>\n" );
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document.write( "Replace the 3x term by -5x+2x to get:<BR>\n" );
document.write( "x^2 +5x-2x - 10 = 0<BR>\n" );
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document.write( "Factor the 1st two and the last two terms separately:<BR>\n" );
document.write( "x(x+5) -2(x+5) = 0<BR>\n" );
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document.write( "Factor again:<BR>\n" );
document.write( "(x+5)(x-2) = 0<BR>\n" );
document.write( "Solve:<BR>\n" );
document.write( "x+5 = 0 or x-2 = 0<BR>\n" );
document.write( "x = -5 or x = +2<BR>\n" );
document.write( "----<BR>\n" );
document.write( "Those are the zeroes.<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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