If , what is the value of ?
Answer and explanation
Correct answer: A. 12
- Step 1: Apply the exponent product rule for common bases (): .
- Step 2: Add the exponents: .
- Step 3: Equate powers: , so .
Answer
.
Why not the others: Multiplying the exponents gives , which erroneously applies the power-of-a-power rule .
Practise more Exponents and radicals.
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