Find the product by inspection (2x – 9y) (2x – 9y).
4x2 – 36xy + 81y2
4x2 + 36xy – 81y2
4x2 + 36xy + 81y2
4x2 – 36xy – 81y2
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Find the product by inspection (2x – 9y) (2x – 9y).
4x2 – 36xy + 81y2
4x2 + 36xy – 81y2
4x2 + 36xy + 81y2
4x2 – 36xy – 81y2
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