Factorise 27p2x2 – 48y2.

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Mathematics WAEC 2004

Factorise 27p2x2 – 48y2.

  • 9(3px - 4y)2
  • 3(3px - 4y)(3px - 4y)
  • 9(px - 4y)(3p x + 4y)
  • 3(3px -4y)(3px +4y) checkmark

The correct answer is: D

Explanation

27p2x2 - 48y2; 3(32 p2x2-42y2)
3[(3px) 2 - (4y) 2]; 3[(3px-4y)(3px+4y)]
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