document.write( "Question 58689: Simplity (sqrt7)(sqrt14) my answer 9.89494937
\n" ); document.write( "Simpilfy 5(sqrt5)-(sqrt20) my answer 6.708203932 is not right.
\n" ); document.write( "Simplify (sqrt5)(sqrt3) my answer 3.87298346
\n" ); document.write( "Determine whether (121)^1/3 is rational or irrational. This is the 3rd root of 121.
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Algebra.Com's Answer #40237 by stanbon(75887)\"\" \"About 
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Simplify (sqrt7)(sqrt14)
\n" ); document.write( "=sqrt(7^2*2)
\n" ); document.write( "=7sqrt2
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\n" ); document.write( "\n" ); document.write( "Simpilfy 5(sqrt5)-(sqrt20)
\n" ); document.write( "=5sqrt5-sqrt(4*5)
\n" ); document.write( "=5sqrt5-2sqrt5
\n" ); document.write( "=3sqrt5
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\n" ); document.write( "\n" ); document.write( "Simplify (sqrt5)(sqrt3)
\n" ); document.write( "=sqrt15
\n" ); document.write( "--------------\r
\n" ); document.write( "\n" ); document.write( "Determine whether (121)^1/3 is rational or irrational. This is the 3rd root of 121.
\n" ); document.write( "It is irrational because 121 is not a perfect cube.
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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