document.write( "Question 619135: Evaluate the polynomial for x=-1\r
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document.write( "-5x^3+7x^2-4x-1
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document.write( "simplify your answer. Type an integer or a fraction\r
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document.write( "I just don't understand this totally yet. Please help me... \n" );
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Algebra.Com's Answer #389393 by jim_thompson5910(35256)![]() ![]() ![]() You can put this solution on YOUR website! Replace x with -1 and evaluate.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "-5x^3+7x^2-4x-1\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "-5(-1)^3+7(-1)^2-4(-1)-1\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "-5(-1)+7(1)-4(-1)-1\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "5+7+4-1\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "15\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "So -5x^3+7x^2-4x-1 = 15 when x = -1 \n" ); document.write( " |