document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=93220>Question 93220</A>: <I><SPAN STYLE=\"word-break: break-all;\"> hi there,\r<BR>\n" );
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document.write( "I am trying to simplify the following expression \r<BR>\n" );
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document.write( "s=u.(v-u)/a + 1/2a((v-u)/a)^2\r<BR>\n" );
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document.write( "it should end up as v^2=u^2+2as\r<BR>\n" );
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document.write( "please help beacuse I cant seam to get it to come out, I have expanded the brackets but still no joy.<BR>\n" );
document.write( "thankyou </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #67872 by </B><A HREF=/tutors/aboutme.mpl?userid=scott8148><B>scott8148(6628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=scott8148><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=scott8148><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=67872\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> start by multiplying by 2a ... 2as=2u(v-u)+a^2((v-u)/a)^2 ... the a^2 cancels leaving 2as=2u(v-u)+(v-u)^2\r<BR>\n" );
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document.write( "expanding gives 2as=2uv-2u^2+v^2-2uv+u^2 ... collecting terms gives 2as=-u^2+v^2 ... adding u^2 gives u^2+2as=v^2\r<BR>\n" );
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document.write( "it helps to know the answer, but the first step of multiplying by 2a would be done anyway to eliminate the fractions </SPAN>\n" );
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