document.write( "Question 468142: 8. Find the bounds on the real zeros of the following function. Please show all of your work.
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document.write( "f(x)=x^5-5x^4+8x+2 \r
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document.write( "please help me out,I appreciate any help, thanks \n" );
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Algebra.Com's Answer #322288 by lwsshak3(11628)![]() ![]() ![]() You can put this solution on YOUR website! Find the bounds on the real zeros of the following function. Please show all of your work. \n" ); document.write( "f(x)=x^5-5x^4+8x+2 \n" ); document.write( "... \n" ); document.write( "f(x)=x^5-5x^4+8x+2 \n" ); document.write( "factors of p=2: ±1, ±2 \n" ); document.write( "factors of q=1: ±1 \n" ); document.write( "possible rational roots, (p/q): ±1, ±2 \n" ); document.write( "Using synthetic division to find real rational roots \n" ); document.write( "0).....1....-5.....0.....0.....8.....2 \n" ); document.write( "1).....1....-4....-4...-4....4....6 (root between 1 and -1) \n" ); document.write( "-1)...1....-6.....6....-6...14..-12 (alternate signs, -1 is lower bound) \n" ); document.write( "2).....1....-3...-6...-12..-16..-30 \n" ); document.write( "-2)...1....-7...14...-28..64...-126 \n" ); document.write( "No rational roots found. \n" ); document.write( " |