document.write( "Question 319327: Given that -1 is a zero of the polynomial g(x)=x^3-3x^2-3x+1, express g(x) as a product of linear factors.
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Algebra.Com's Answer #228630 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Given that -1 is a zero of the polynomial g(x)=x^3-3x^2-3x+1, express g(x) as a product of linear factors. \n" ); document.write( "------------ \n" ); document.write( "If -1 is a zero, use synthetic division to find the other factors: \n" ); document.write( "---- \n" ); document.write( "-1)....1....-3....-3....1 \n" ); document.write( ".......1....-4....1....|..0 \n" ); document.write( "----------- \n" ); document.write( "The quadratic factor is x^2-4x+1 \n" ); document.write( "--- \n" ); document.write( "Use the quadratic formula to find the zeroes: \n" ); document.write( "x = [4 +- sqrt(16-4*1)]/2 \n" ); document.write( "x = [4 +- sqrt(12)]/2 \n" ); document.write( "--- \n" ); document.write( "x = [4 +- 2sqrt(3)]/2 \n" ); document.write( "--- \n" ); document.write( "x = [2 +- sqrt(3)] \n" ); document.write( "x = 2+sqrt(3) or x = 2-sqrt(3) or x = -1 \n" ); document.write( "============================================ \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "============= \n" ); document.write( " |