document.write( "Question 205043: simplify the following expressions, writing each in simpliest radical form with no square roots in the denominator. All variables represent non- negative reals.\r
\n" ); document.write( "\n" ); document.write( "square root of 21x over
\n" ); document.write( "square root of 12y
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Algebra.Com's Answer #154772 by Earlsdon(6294)\"\" \"About 
You can put this solution on YOUR website!
Simplify:
\n" ); document.write( "\"%28sqrt%2821x%29%29%2Fsqrt%2812y%29\" Multiply this by:\"sqrt%2812y%29%2Fsqrt%2812y%29\"
\n" ); document.write( "\"sqrt%2821x%29%2Asqrt%2812y%29%2F12y\" Simplify the numerator.
\n" ); document.write( "\"sqrt%2821%2A12%2Ax%2Ay%29%2F12y+=+sqrt%28252xy%29%2F12y\"=\"sqrt%2836%2A7xy%29%2F12y+=+6sqrt%287xy%29%2F12y\" = \"highlight%28sqrt%287%29%2F2y%29\"
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