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Verified answer
Diketahui :- x = 3
- x² - 5x + c = 0
Ditanya :
- Nilai c = .....?
Penyelesaian :
- Nilai c :
x² - 5x + c = 0
3² - 5(3) + c = 0
9 - 15 + c = 0
- 6 + c = 0
- 6 = - c
- c = - 6
c = 6
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