Simplify: 1/4(2n - 2n+2)

  • A 2n2 - 2n
  • B 2n-2(1-2n)
  • C 2n + 22n + 2
  • D 22n
waec 1991mathematics

The correct answer is A. 2n2 - 2n

1/4(2n - 2n+2) = 2-2(2n - 2n x 22) = 2n x -2(1 - 22)= 22n-2

(20 - 22) = 22n-2 - 2n

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