Factorise 27p2x2 - 48y2.

  • A 9(3px - 4y)2
  • B 3(3px - 4y)(3px - 4y)
  • C 9(px - 4y)(3p x + 4y)
  • D 3(3px -4y)(3px +4y)
waec 2004mathematics

The correct answer is D. 3(3px -4y)(3px +4y)

27p2x2 - 48y2; 3(32 p2x2-42y2)

3[(3px) 2 - (4y) 2]; 3[(3px-4y)(3px+4y)]

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