ISEE Word Problems Question 276: Answer and Explanation
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Question: 276
10. What expression is equivalent to 3a3b5 + 2a2b4 – (7a2b4 – 4a3b5)?
- A. –4a3b5 + 6a2b4
- B. 5a3b5 – 3a2b4
- C. –5a3b5 + a2b4
- D. 7a3b5 – 5a2b4
Correct Answer: D
Explanation:
D
First, distribute the negative sign: 3a3b5 + 2a2b4 – 7a2b4 + 4a3b5. Carefully combine like terms: 7a3b5 – 5a2b4.