document.write( "Question 309255: How to find factors of: 25x2y4-49.
\n" ); document.write( "X2 is x squared, y4 is y fourth.
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Algebra.Com's Answer #221147 by stanbon(75887)\"\" \"About 
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find factors of: 25x^2y^4-49
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\n" ); document.write( "= (5xy^2-7)(5xy^2+7)
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\n" ); document.write( "Cheers,
\n" ); document.write( "stan H.
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