Simplify 2a2 -4ab – 6a2 – 10ab + 5ab – 5a2

Mathematics NECO 2002

Simplify 2a2 -4ab – 6a2 – 10ab + 5ab – 5a2

  • -9(a + b)
  • 9(a + b)
  • -9a (a + b) checkmark
  • 9a(a - b)
  • 9b(a + b)

The correct answer is: C

Explanation

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