document.write( "Question 600415: Evaluate the polynomial for x=-1\r
\n" ); document.write( "\n" ); document.write( "-4x^(3)+8x^(2)-9x-1\r
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Algebra.Com's Answer #379319 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!
Replace 'x' with -1 and evaluate/simplify to find the answer.\r
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\n" ); document.write( "\n" ); document.write( "-4x^3+8x^2-9x-1\r
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\n" ); document.write( "\n" ); document.write( "-4(-1)^3+8(-1)^2-9(-1)-1\r
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\n" ); document.write( "\n" ); document.write( "-4(-1)+8(1)-9(-1)-1\r
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\n" ); document.write( "\n" ); document.write( "4+8+9-1\r
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\n" ); document.write( "\n" ); document.write( "20\r
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\n" ); document.write( "\n" ); document.write( "So -4x^3+8x^2-9x-1 = 20 when x = -1
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