9(3px - 4y)2
3(3px - 4y)(3px - 4y)
9(px - 4y)(3p x + 4y)
3(3px -4y)(3px +4y)
Correct answer is D
27p2x2 - 48y2; 3(32 p2x2-42y2) 3[(3px) 2 - (4y) 2]; 3[(3px-4y)(3px+4y)]
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