What is the value of ?
Answer and explanation
Correct answer: A. 243
- Step 1: Apply the exponent quotient rule for identical bases with base .
- Step 2: Subtract the powers in the numerator and denominator: .
- Step 3: Compute the resulting power: .
Answer
243.
Why not the others: 81 is (off by 1 in exponent); 729 is ; 6561 is ; 15 computes .
Practise more Powers and roots.
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