document.write( "Question 1198816: find the value of k in the equation k^3 - 3k^2 - 4= 0
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Algebra.Com's Answer #832464 by ikleyn(52781)![]() ![]() You can put this solution on YOUR website! . \n" ); document.write( "solve equation x^3 − 3x^2 − 4 = 0 \n" ); document.write( "~~~~~~~~~~~~~~~~~~~~\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \r\n" ); document.write( "x1 = 3.3553\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "x2 = −0.17765 + 1.0773i\r\n" ); document.write( "\r\n" ); document.write( " \r\n" ); document.write( "x3 = −0.17765 − 1.0773i\r\n" ); document.write( "\r\n" ); document.write( " \r\n" ); document.write( " Explanation\r\n" ); document.write( "\r\n" ); document.write( "This polynomial has no rational roots that can be found using Rational Root Test.\r\n" ); document.write( "\r\n" ); document.write( "Roots were found using cubic formulas.\r\n" ); document.write( "\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "I used free of charge online solver from this website \r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "https://www.mathportal.org/calculators/solving-equations/polynomial-equation-solver.php?val1=x%5E3+-+3x%5E2+-4+%3D+0&val2=&val3=%7Bx%7D%5E%7B3%7D-4%7Bx%7D%5E%7B2%7D%2Bx%3D0\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |