SAT Math Multiple Choice Question 877: Answer and Explanation
7. When completely simplified,has a value of:
- A. 0
- B. 1
- C. 5
- D. 25
Correct Answer: B
Category: Passport to Advanced Math / Exponents
Strategic Advice: Raising large numbers to high powers is very time-consuming without a calculator. Instead, start by using the rules of exponents to simplify expressions written in the same base. Then raise any remaining numbers to the resulting powers.
Getting to the Answer: The power of 25 is larger in the denominator, so subtract the exponents there. Then simplify further if possible:, which is (B).