December 2019 1 96 Report
Di antara pemfaktoran berikut :

1. 6x² + 12x - 20 = (2x - 2) (3x + 10)
2. 6x² + 14x - 20 = (2x + 2) (3x - 10)
3. 4x² -10x = 2x (x - 5)
4. x² - 9 = (x - 3) (x - 3)

yang benar adalah

A.1 dan 3
B. 1 dan 4
C.2 dan 3
D. 2 dan 4

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