document.write( "Question 329330: 2x^3-x^2-18x+9=0 \n" ); document.write( "
Algebra.Com's Answer #236018 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! 2x^3-x^2-18x+9=0 \n" ); document.write( "---- \n" ); document.write( "I graphed it and found one zero at x = 1/2 \n" ); document.write( "--------- \n" ); document.write( "1/2)....2....-1....-18....9 \n" ); document.write( ".........2.....0.....-18..|..0\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "==================================== \n" ); document.write( "Quotient: 2x^2-18 \n" ); document.write( "--- \n" ); document.write( "Solve 2x^2-18 = 0 \n" ); document.write( "2(x^2-9)=0 \n" ); document.write( "(x-3)(x+3) = 0 \n" ); document.write( "x = 3 or x = -3 \n" ); document.write( "========================= \n" ); document.write( "Solutions: x = 1/2, x = 3, x = -3 \n" ); document.write( "===================================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |