Factorize completely 9y2 – 16X2

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Mathematics JAMB 2011

Factorize completely 9y2 – 16X2

  • (3y - 2x)(3y + 4x)
  • (3y + 4x)(3y + 4x)
  • (3y + 2x)(3y - 4x)
  • (3y - 4x)(3y + 4x) checkmark

The correct answer is: D

Explanation

9y2 - 16x2

= 32y2 - 42x2

= (3y - 4x)(3y +4x)

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