#pakai cara #besok di kumpul

1)
x² - 3x - 4
-----------------
x² + 2x + 1

(x - 4)(x + 1)
----------------
(x + 1)(x + 1)

x - 4
-------
x + 1

2)
x² + 4x - 45
-------------------
3x² - 14x - 5

(x + 9)(x - 5)
------------------
(3x + 1)(x - 5)

x + 9
-----------
3x + 1

3)
6x² - 5x + 1
-----------------
12x² - 7x + 1

(2x - 1)(3x - 1)
---------------------
(4x - 1)(3x - 1)

2x - 1
---------
4x - 1