document.write( "Question 1136890: Zeros of Functions\r
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document.write( "Find an nth degree polynomial function with real coefficients such that:\r
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document.write( "n=3
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document.write( "1 and i are zeros
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document.write( "f(-1)=8 \n" );
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Algebra.Com's Answer #754728 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! Find an nth degree polynomial function with real coefficients such that:\r \n" ); document.write( "\n" ); document.write( "n=3 \n" ); document.write( "1 and i are zeros \n" ); document.write( "f(-1)=8 \n" ); document.write( "---------- \n" ); document.write( "Zeroes are 1, i & -i \n" ); document.write( "--> (x-1)*(x^2 + 1) = x^3 - x^2 + x - 1 \n" ); document.write( "--------- \n" ); document.write( "f(-1) = -1 - 1 - 1 - 1 = -4 \n" ); document.write( "Multiply by -2 \n" ); document.write( "--> f(x) -2x^3 + 2x^2 - 2x + 2 \n" ); document.write( "============ \n" ); document.write( "f(-1) = 2 + 2 + 2 + 2 = 8 \n" ); document.write( " \n" ); document.write( " |