(5x2 + x – 3) – (–2x3 + 4) A. –2x3 + 5x2 + x – 7 B. –2x3 + 5x2 + x + 1 C. 2x3 + 5x2 + x – 7 D. 2x3 + 5x2 + x + 1
= 5x2 + x - 3 + 2x3 - 4 (Note: minus minus is plus) = 2x3 + 5x2 + x - 7 Therefore, the answer is option A: –2x3 + 5x2 + x – 7.
You can ask a new question or answer this question.