document.write( "Question 1002410: Which of the following are difference of squares? \r
\n" ); document.write( "\n" ); document.write( "Y^2-16, m^2+25, 2x^2-9, 25a^2-1
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Algebra.Com's Answer #619352 by fractalier(6550)\"\" \"About 
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Only the first and the last are the difference of squares. \n" ); document.write( "
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