document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1133053>Question 1133053</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If h(x)=x^2-5x+4,<BR>\n" );
document.write( "i) express h(2a)-h(a) in terms of a.<BR>\n" );
document.write( "ii)  find values of 'a' for which h(a)=0<BR>\n" );
document.write( "iii) express h(a^2)+h(a) in terms of 'a'. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #750219 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39625)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=750219\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> (i) is a matter of substitution and then simplify.\r<BR>\n" );
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document.write( "(iii) is a matter of subsitution.\r<BR>\n" );
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document.write( "You can do these yourself.\r<BR>\n" );
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document.write( "(ii)<BR>\n" );
document.write( "You only need to substitute here for a.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=a ALIGN=MIDDLE  ALT=\"x=a\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=h%28a%29=a%5E2-5a%2B4=0 ALIGN=MIDDLE  ALT=\"h%28a%29=a%5E2-5a%2B4=0\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a%5E2-5a%2B4=0 ALIGN=MIDDLE  ALT=\"a%5E2-5a%2B4=0\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28a-1%29%28a-4%29=0 ALIGN=MIDDLE  ALT=\"%28a-1%29%28a-4%29=0\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=system%28either%2Ca=1%2Cor%2Ca=4%29 ALIGN=MIDDLE  ALT=\"system%28either%2Ca=1%2Cor%2Ca=4%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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