Simplify and evaluate .
Answer and explanation
Correct answer: A.
- Step 1: Add the exponents in the numerator and subtract the exponent in the denominator: .
- Step 2: .
Answer
.
Why not the others: : the exponent of the divisor was added instead of subtracted. : the exponents were multiplied instead of added. : the second exponent was subtracted instead of added.
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