Jika a=5, B=-2dan c=6 berapa 2ab-4cb

MAPEL = MATEMATIKA
KELAS = 7
BAB = OPERASI HITUNG ALJABAR

diketahui =
a = 5
b = -2
c = 6

ditanya = 2ab - 4cb??

2ab - 4cb
= 2(5)(-2) - 4(6)(-2)
= 2(-10) - 4(-12)
= -20 + 48
= 28

semoga membantu

2ab - 4cb
2.5.-2 - 4.6.-2
- 20 - ( - 48 )
- 20 + 48
28