document.write( "Question 377504: Factor as the difference of two squares. Be sure to factor completely. \r
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Algebra.Com's Answer #268248 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi,
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document.write( "Factoring as the difference of two squares
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document.write( "9x^2 - 1 
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document.write( "(3x-1)(3x +1)
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document.write( "Note:SUM of the inner product(-3x) and the outer product(3x) = 0 \n" );
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