Answer:
4x^2 - 7x + 12 - 21/(x + 2)
Explanation:
4x^2 - 7x + 12
-----------------------------
x + 2 | 4x^3 + x^2 - 2x + 3
4x^3 + 8x^2
--------------------------
-7x^2 - 2x
-7x^2 - 14x
-------------------
12x +3
12x + 24
----------------
-21
Answer: 4x^2 - 7x + 12 - 21/(x + 2)