document.write( "Question 769520: Can someone please help?\r
\n" ); document.write( "\n" ); document.write( "Expand (x-2√y)(x+2√y) and simplify. Assume y ≥ 0
\n" ); document.write( "A. x^2-4x√y+y
\n" ); document.write( "B. x^2-4x√y+y
\n" ); document.write( "C. x^2+4y
\n" ); document.write( "D. x^2-4y\r
\n" ); document.write( "\n" ); document.write( "I got C? (x-2√y)(x+2√y)= x^2-2x√y-2x√y-4√y^2= x^2-4√y^2= x^2+4√y+y \n" ); document.write( "
Algebra.Com's Answer #468908 by Alan3354(69443)\"\" \"About 
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Can someone please help?\r
\n" ); document.write( "\n" ); document.write( "Expand (x-2√y)(x+2√y) and simplify. Assume y ≥ 0
\n" ); document.write( "A. x^2-4x√y+y
\n" ); document.write( "B. x^2-4x√y+y
\n" ); document.write( "C. x^2+4y
\n" ); document.write( "D. x^2-4y\r
\n" ); document.write( "\n" ); document.write( "I got C? (x-2√y)(x+2√y)= x^2-2x√y-2x√y-4√y^2= x^2-4√y^2= x^2+4√y+y
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\n" ); document.write( "All the symbols are not appreciated. You're wasting your time and mine.
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\n" ); document.write( "It's the product of a sum and difference.
\n" ); document.write( "\"%28a-b%29%2A%28a%2Bb%29+=+a%5E2+-+b%5E2\"
\n" ); document.write( "\"%28x+-+2sqrt%28y%29%29%2A%28x+%2B+2sqrt%28y%29%29+=+x%5E2+-+4y\"
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