document.write( "Question 64517: Combine and Simplify: (square root of)160 - (square root of)490\r
\n" ); document.write( "\n" ); document.write( "a) -(square root of)320
\n" ); document.write( "b) -3(square root of)10
\n" ); document.write( "c) -30
\n" ); document.write( "d) -3
\n" ); document.write( "e) None of these
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Algebra.Com's Answer #45135 by checkley71(8403)\"\" \"About 
You can put this solution on YOUR website!
sqrt160-sqrt490
\n" ); document.write( "4sqrt10-7sqrt10
\n" ); document.write( "-3sqrt10
\n" ); document.write( "answer B)-3sqrt10
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