Simplify (8^{n} times 2^{2n} div 4^{3n})

FURTHER MATHEMATICSWAEC 2006

Simplify \(8^{n} \times 2^{2n} \div 4^{3n}\)

  • A. \(2^{-n}\)
  • B. \(2^{1 - n}\)
  • C. \(2^{n}\)
  • D. \(2^{n + 1}\)

Correct Answer: A. \(2^{-n}\)

Explanation

\(8^{n} \times 2^{2n} \div 4^{3n} = 2^{3n} \times 2^{2n} \div 2^{6n}\)

\(2^{2n + 3n - 6n}\)

= \(2^{-n}\)

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