document.write( "Question 201790: Multiply: sqrt (x)^1/3 (sqrt (3x^2)^1/3 - sqrt (81x^2)^1/3) \n" ); document.write( "
Algebra.Com's Answer #152040 by Theo(13342)\"\" \"About 
You can put this solution on YOUR website!
your formula looks like this:
\n" ); document.write( " if I understand it correctly.
\n" ); document.write( "since \"sqrt%28x%29\" is the same as \"x%5E%281%2F2%29\" this formula can be rewritten as follows:
\n" ); document.write( "
\n" ); document.write( "since by the rules of exponents \"%28x%5Ea%29%5Eb\" is equal to \"x%5E%28a%2Ab%29\", this formula can be rewritten as follows:
\n" ); document.write( "\"+x%5E%281%2F6%29+%2A+%28%283%2Ax%5E2%29%5E%281%2F6%29+-+%2881%2Ax%5E2%29%5E%281%2F6%29%29%29\"
\n" ); document.write( "since \"%28a%2Ab%29%5Ec\" is equal to \"a%5Ec%2Ab%5Ec\", this formula can be rewritten as follows:
\n" ); document.write( "
\n" ); document.write( "since \"x%5E%281%2F3%29\" is a common factor, it can be factored out to get:
\n" ); document.write( "\"x%5E%281%2F6%29%2Ax%5E%281%2F3%29%2A%283%5E%281%2F6%29-81%5E%281%2F6%29%29\"
\n" ); document.write( "which simplifies to:
\n" ); document.write( "\"x%5E%281%2F2%29%2A%283%5E%281%2F6%29-81%5E%281%2F6%29%29\"
\n" ); document.write( "which i do not believe can be simplified any further, so I reduced the constants to get:
\n" ); document.write( "\"-.879146868+%2A+x%5E%281%2F2%29\"
\n" ); document.write( "to prove the answer is correct, then take any value of x and solve the original equation and then solve the reduced equation. you should get the same answer.
\n" ); document.write( "I did it using a value of x = 4, 12, and 27.
\n" ); document.write( "You can use any value you wish if you want to take the time to prove it to yourself.
\n" ); document.write( "
\n" ); document.write( "
\n" );