document.write( "Question 243683: What is the square root of 50y^8 \n" ); document.write( "
Algebra.Com's Answer #178491 by jim_thompson5910(35256)\"\" \"About 
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\n" ); document.write( "\"sqrt%2850%2Ay%5E8%29\" Start with the given expression.\r
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\n" ); document.write( "\n" ); document.write( "\"sqrt%2825%2A2%2Ay%5E8%29\" Factor \"50\" into \"25%2A2\"\r
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\n" ); document.write( "\n" ); document.write( "\"sqrt%2825%2A2%2Ay%5E2%2Ay%5E2%2Ay%5E2%2Ay%5E2%29\" Factor \"y%5E8\" into \"y%5E2%2Ay%5E2%2Ay%5E2%2Ay%5E2\"\r
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\n" ); document.write( "\n" ); document.write( " Break up the square root using the identity \"sqrt%28A%2AB%29=sqrt%28A%29%2Asqrt%28B%29\".\r
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\n" ); document.write( "\n" ); document.write( "\"5%2Asqrt%282%29%2Asqrt%28y%5E2%29%2Asqrt%28y%5E2%29%2Asqrt%28y%5E2%29%2Asqrt%28y%5E2%29\" Take the square root of \"25\" to get \"5\".\r
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\n" ); document.write( "\n" ); document.write( "\"5%2Asqrt%282%29%2Ay%2Ay%2Ay%2Ay\" Take the square root of \"y%5E2\" to get \"y\".\r
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\n" ); document.write( "\n" ); document.write( "\"5y%5E4%2Asqrt%282%29\" Rearrange and multiply the terms.\r
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\n" ); document.write( "\n" ); document.write( "Answer:\r
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\n" ); document.write( "\n" ); document.write( "So \"sqrt%2850%2Ay%5E8%29\" simplifies to \"5y%5E4%2Asqrt%282%29\"\r
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\n" ); document.write( "\n" ); document.write( "In other words, \"sqrt%2850%2Ay%5E8%29=5y%5E4%2Asqrt%282%29\" where \"y%3E=0\"
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