Simplify: 3 to the fourth power.
A81
B12
C64
D243
Answer & Solution
Correct answer: A. 81
1. Expand 3 to the fourth power as 3 times 3 times 3 times 3.
2. Multiply the first two factors left to right: 3 times 3 is 9.
3. Multiply the running total by the next factor: 9 times 3 is 27.
4. Multiply by the last factor: 27 times 3 is 81.
_Source: OpenStax Elementary Algebra (CC BY 4.0), Ch 1 "Foundations", section 1.2 Use the Language of Algebra_
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