✔ 最佳答案
5)
.........___2 - 1___
2 - 1 | 4 - 4 + 1
.........4 - 2
-----------------------
............- 2 + 1
............- 2 + 1
_____________
....................0(4x²- 4x + 1) ÷ (2x - 1)商式 = (2x - 1)
餘式 = 0
6)
........._____4 - 1_
4 + 1 | 16 + 0 - 4
..........16 + 4
______________
...............- 4 - 4
...............- 4 - 1
______________
....................- 3(16x² - 4) ÷ (4x + 1)商式= (4x - 1)
餘式= - 3
7)
........____1_ - 4_
3 + 5 | 3 - 7 - 16
..........3 +5
______________
............-12 - 16
............-12 - 20
_____________
.....................4(3x² - 16 - 7x) ÷ (5 + 3x)商式 = (x - 4)
餘式 = 4
8)
..........._____3 + 5__
- 1 + 3 | - 3 + 4 + 5
............- 3 + 9
________________
..................- 5 + 5
..................- 5 +15
_________________
.......................- 10(5 + 4x - 3x²) ÷ (-x + 3)商式 = (3x + 5)
餘式 = - 10