document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=694298>Question 694298</A>: <I><SPAN STYLE=\"word-break: break-all;\"> What is the upper limit for the zeros of the function <BR>\n" );
document.write( "P(x) = 4x^4 + 8x^3 - 7x^2 - 21x - 9 </SPAN>\n" );
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document.write( "P(x) = 4x^4 + 8x^3 - 7x^2 - 21x - 9<BR>\n" );
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document.write( "Ans: 2 is an upper limit.<BR>\n" );
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document.write( "Use synthetic division.<BR>\n" );
document.write( "2)....4....8....-7....-21....-9<BR>\n" );
document.write( ".......4....16...25....29....|49\r<BR>\n" );
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document.write( "Comment: Since the coefficients of the quotient<BR>\n" );
document.write( "and the remainder are all positive, 2 is an upper limit.<BR>\n" );
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document.write( "Note: It is not THE upper limit.  Any number greater than<BR>\n" );
document.write( "2 is also an upper limit.<BR>\n" );
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