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Factorise -20x⊃2; - 9x + 20

  • A.(5 + 4x)(4 - 5x)
  • B.(5 - 4x)(4 - 5x)
  • C.(5 - 4x)(4 + 5x)
  • D.(5 + 4x)(4 + 5x)

Answer: A

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