document.write( "Question 252922: combine the radicals below. show your steps.
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\n" ); document.write( "11. 4 and square root of 11 + 8 and square root of 11
\n" ); document.write( "12. square root of 80 - square root of 5\r
\n" ); document.write( "\n" ); document.write( "please help me!!!
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Algebra.Com's Answer #185049 by drk(1908)\"\" \"About 
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combine the radicals below. show your steps.
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\n" ); document.write( "11. 4 and square root of 11 + 8 and square root of 11
\n" ); document.write( "I think you mean
\n" ); document.write( "\"4%2Asqrt%2811%29+%2B+8%2Asqrt%2811%29\"
\n" ); document.write( "Think of sqrt(11) as X.
\n" ); document.write( "\"4X+%2B+8X+=+12X\"
\n" ); document.write( "So, we get
\n" ); document.write( "\"12sqrt%2811%29\"
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\n" ); document.write( "12. square root of 80 - square root of 5
\n" ); document.write( "\"sqrt%2880%29+-+sqrt%285%29\"
\n" ); document.write( "\"sqrt%2880%29+=+sqrt%285%2A16%29\" = \"sqrt%2816%29%2Asqrt%285%29+=+4%2Asqrt%285%29\"
\n" ); document.write( "So, 4*sqrt(5) - sqrt(5) = 3sqrt(5)
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