document.write( "Question 237777: ok so the problem ask \"add or subtract as the signs indicate. When possible, check results with the calculator, recording screen displays exactly as they apprear\" here is the problem
\n" );
document.write( " 3cubed root of 27 + 12 cubed root of 216.\r
\n" );
document.write( "\n" );
document.write( "so far all i have done is 3 cubed root of 3 squared times 2. then i got stuck. i dont even know if this is even right
\n" );
document.write( " \n" );
document.write( "
Algebra.Com's Answer #174895 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! 3cubed root of 27 + 12 cubed root of 216. \n" ); document.write( ": \n" ); document.write( " I am going to use \n" ); document.write( ": \n" ); document.write( " \n" ); document.write( "You know the cube root of 27 is 3: (3*3*3=27) \n" ); document.write( " \n" ); document.write( ": \n" ); document.write( "Factor 216 to reveal some perfect cubes inside the radical 8 * 27 which are 2^3 & 3^3 \n" ); document.write( " \n" ); document.write( "extract the perfect cubes, gets rid of the radical \n" ); document.write( "9 + 12*2*3 \n" ); document.write( "9 + 72 = 81 \n" ); document.write( ": \n" ); document.write( "to check on a calc use the exponent equiv of cube root ^(1/3) \n" ); document.write( ": \n" ); document.write( "Enter:3*27^(1/3) + 12*216^(1/3) results in 81; confirms your solutions \n" ); document.write( " |