document.write( "Question 147734: Find a rational zero of the polynomial function and use it to find all the zeros of the function.
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document.write( "f(x)=2x^3-x^2-12x+6
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Algebra.Com's Answer #108126 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Find a rational zero of the polynomial function and use it to find all the zeros of the function. \n" ); document.write( "f(x)=2x^3-x^2-12x+6 \n" ); document.write( "------------------------- \n" ); document.write( "Using synthetic division: \n" ); document.write( "(1/2)....2....-1....-12....6 \n" ); document.write( "..........2.....0......-12..|..0\r \n" ); document.write( "\n" ); document.write( "Zero at x=1/2 \n" ); document.write( "-------------- \n" ); document.write( "Examine 2x^2-12 = 0 \n" ); document.write( "2x^2 = 12 \n" ); document.write( "x^2 = 6 \n" ); document.write( "Zeroes at x = sqrt(6) and at x = -sqrt(6) \n" ); document.write( "============================= \n" ); document.write( "Chees, \n" ); document.write( "Stan H. \n" ); document.write( " |