document.write( "Question 636587: what is the factor of W^2-49z^2 \n" ); document.write( "
Algebra.Com's Answer #401111 by ewatrrr(24785)\"\" \"About 
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document.write( "Hi,
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document.write( "W^2-49z^2 = (W - 7z)(W + 7z)
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document.write( "Check factoring using FOIL
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document.write( "F	First terms
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document.write( "O	Outside terms
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document.write( "I	Inside terms
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document.write( "L	Last terms\r
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