PSAT Math Multiple-Choice Question 674: Answer and Explanation
Question: 674
(2y4 + 3x6) + (5x6 + 3y4) is equivalent to which of the following?
- A. 5y4 + 8x6
- B. 7y4 + 6x6
- C. 13y4x6
- D. 5y8 + 8x12
Correct Answer: A
Explanation:
(A) Since there's nothing to distribute, you can just drop the parentheses and combine like terms:
2y4 + 3x6 + 5x6+ 3y4 = 5y4 + 8x6
The correct answer is choice (A).
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