document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=51431>Question 51431</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How do you solve, (x-4)(x-4)=0 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #34371 by </B><A HREF=/tutors/aboutme.mpl?userid=rchill><B>rchill(405)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=rchill><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=34371\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> If you have two numbers being multiplied together to produce 0, that means at least one of the numbers has to be 0 because 0 times anything else is always 0.  Therefore, that means that (x-4) must equate to a 0 thusly:  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x-4=0 ALIGN=MIDDLE  ALT=\"x-4=0\"   DISABLED_style= \"max-width:90%; height:auto;\" >.  Adding 4 to both sides produces:  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x-4%2B4=0%2B4 ALIGN=MIDDLE  ALT=\"x-4%2B4=0%2B4\"   DISABLED_style= \"max-width:90%; height:auto;\" >, which simplifies to <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=4 ALIGN=MIDDLE  ALT=\"x=4\"   DISABLED_style= \"max-width:90%; height:auto;\" >.  Because both factors are (x-4), there is only one answer; namely; x=4. </SPAN>\n" );
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