Factorize each of the following expressions:4(xy + 1)2 - 9(x - 1)2

1.	Factorize each of the following expressions:4(xy + 1)2 - 9(x - 1)2
Answer» [2x (xy + 1)]²– [3 (x – 1)]² = (2xy + 2 + 3x – 3) (2xy + 2 – 3x + 3) = (2xy + 3x – 1) (2xy – 3x + 5)

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