Factorise 27p2x2 – 48y2.
- 9(3px - 4y)2
- 3(3px - 4y)(3px - 4y)
- 9(px - 4y)(3p x + 4y)
-
3(3px -4y)(3px +4y)
The correct answer is: D
Explanation
27p2x2 - 48y2; 3(32 p2x2-42y2)3[(3px) 2 - (4y) 2]; 3[(3px-4y)(3px+4y)]