document.write( "Question 103966:
\n" ); document.write( " 8 / cube root of 16
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Algebra.Com's Answer #75642 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!
\"8%2Aroot%283%2C16%29\" Start with the given expression\r
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\n" ); document.write( "\n" ); document.write( "The goal of simplifying expressions with third roots is to factor the radicand into a product of two numbers.
\n" ); document.write( "One of these two numbers must be a value in which you can take the third root and still get a rational number. \r
\n" ); document.write( "\n" ); document.write( "So let's list the factors of 16\r
\n" ); document.write( "\n" ); document.write( "Factors:\r
\n" ); document.write( "\n" ); document.write( "1, 2, 4, 8, 16\r
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\n" ); document.write( "\n" ); document.write( "Notice how 8 is the largest value in which you can take the third root and still get a rational number, so lets break 16 down into 8*2\r
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\n" ); document.write( "\n" ); document.write( "\"8%2Aroot%283%2C8%2A2%29\" Factor 16 into 8*2
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\n" ); document.write( "\"8%2Aroot%283%2C8%29%2Aroot%283%2C2%29\" Break up the roots using the identity \"root%28n%2Cx%2Ay%29=root%28n%2Cx%29%2Aroot%28n%2Cy%29\"
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\n" ); document.write( "\"8%2A2%2Aroot%283%2C2%29\" Take the third root of 8 to get 2 \r
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\n" ); document.write( "\n" ); document.write( "\"16%2Aroot%283%2C2%29\" Multiply
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