SSAT Math Question 344: Answer and Explanation
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Question: 344
3. Combine and simplify:
(3x3 + 8x -4) -(-5x3 + 6x -10)
- A. –2x3 + 14x – 14
- B. 2x3 – 2x – 6
- C. 8x3 + 14x – 14
- D. 8x3 – 2x + 14
Correct Answer: E
Explanation:
The answer is E
First, distribute the negative sign: (3x3 + 8x - 4) + 5x3 - 6x + 10. Next combine like terms: 8x3 + 2x + 6.