document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=83834>Question 83834</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Calculate the indicated value.\r<BR>\n" );
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document.write( "f(x) = 7x - 27x^2 - 7<BR>\n" );
document.write( "find f(-7) \r<BR>\n" );
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document.write( "I'm not sure where to start, do I just replace each x with -7? I have a few question like this and if possible I'd like to see the steps and the answer so I can figure out the rest of my questions. Thank you for your help! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #60299 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><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=60299\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Whenever you see something like f(-7) you just substitute -7 in for x (ie you replace every x with -7) and you evaluate the answer.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=f%28-7%29+=+7%28-7%29+-+27%28-7%29%5E2+-+7 ALIGN=MIDDLE  ALT=\"f%28-7%29+=+7%28-7%29+-+27%28-7%29%5E2+-+7\"   DISABLED_style= \"max-width:90%; height:auto;\" > Plug in x=-7\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=f%28-7%29+=+7%28-7%29+-+27%2849%29+-+7 ALIGN=MIDDLE  ALT=\"f%28-7%29+=+7%28-7%29+-+27%2849%29+-+7\"   DISABLED_style= \"max-width:90%; height:auto;\" > Square -7\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=f%28-7%29+=+-49+-+1323+-+7 ALIGN=MIDDLE  ALT=\"f%28-7%29+=+-49+-+1323+-+7\"   DISABLED_style= \"max-width:90%; height:auto;\" > Multiply\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=f%28-7%29+=+-1%2C379 ALIGN=MIDDLE  ALT=\"f%28-7%29+=+-1%2C379\"   DISABLED_style= \"max-width:90%; height:auto;\" > Combine like terms\r<BR>\n" );
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document.write( "So f(-7) is -1,379\r<BR>\n" );
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