document.write( "Question 772757: expand (x-2 sqrt y)(x+2 sqrt y) and simplify, assume y >= 0 \n" ); document.write( "
Algebra.Com's Answer #471095 by MathLover1(20849)\"\" \"About 
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\n" ); document.write( "\n" ); document.write( "\"x%5E2-4y+\"
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