document.write( "Question 374845: Factor completely. Be sure to factor out the greatest common factor first if it is other than 1.\r
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Algebra.Com's Answer #266573 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi,
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document.write( "Factoring completely
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document.write( "7x^2 - 49xy - 56y^2 
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document.write( "7(x^2 - 7xy - 8y^2)
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document.write( "7(x- 8y)(x + y)  Note: sum of inner(-8xy) and outer products(xy) = -7xy\r
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