document.write( "Question 1005104: If x=3^1/3+3^-1/3
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document.write( "Then 3x^3-9x equal to ?
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Algebra.Com's Answer #621488 by stanbon(75887) ![]() You can put this solution on YOUR website! If x=3^1/3+3^-1/3 \n" ); document.write( "---- \n" ); document.write( "x = 3^(1/3) + 1/3^(1/3) \n" ); document.write( "---- \n" ); document.write( "x = [3^(2/3) +1]/(3^(1/3)) \n" ); document.write( "---- \n" ); document.write( "x = 2.1356 \n" ); document.write( "------------------------ \n" ); document.write( "Then 3x^3-9x equal to ? \n" ); document.write( "---- \n" ); document.write( "= 3(2.1356)^3-9(2.1356) \n" ); document.write( "---- \n" ); document.write( "= 10 \n" ); document.write( "-------------- \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "------------ \n" ); document.write( " |