document.write( "Question 1044562: Please help me solve this question in a understandable way for grade 10 curriculum!\r
\n" ); document.write( "\n" ); document.write( "Given that 3a−1/2a=7, determine the value of 27a^3−1/8a^3 without solving for a.\r
\n" ); document.write( "\n" ); document.write( "From the website, it gives that (3a−1/2a)(9a^2+3/2+1/4a^2)= 27a^3-1/8a^3, but how did they get the 3/2 from the middle? \r
\n" ); document.write( "\n" ); document.write( "Answers will be much appreciated!
\n" ); document.write( "

Algebra.Com's Answer #659881 by josgarithmetic(39617)\"\" \"About 
You can put this solution on YOUR website!
The equation which the website shows is based on the formula for Difference Of Cubes. You can find the formula yourself using polynomial division.
\n" ); document.write( "Something is missing in what the website tells you. You have found a mistake.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Look: \"x%5E3-y%5E3=%28x-y%29%28x%5E2%2Bxy%2By%5E2%29\"\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Maybe I have not understood some of what YOU wrote?
\n" ); document.write( "Did you mean, \"3a-%281%2F2%29a=7\"
\n" ); document.write( "or did you mean, \"3a-1%2F%282a%29=7\"
\n" ); document.write( "?\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "The way that \"3%2F2\" becomes one of the terms in one of the polynomial sum-of-terms factors is therefore becoming more obvious.
\n" ); document.write( "
\n" );