apabila a=6,b=-3,dan c=-5 berapakah nilai 3ab-2bc?jelaskan dgn caranya!

Penyelesaian :

a = 6
b = - 3
c = - 5

Nilai 3ab - 2bc = ???
3(6)(-3) - 2(-3)(-5)
= 3(-18) - 2 (15)
= - 54 - 30
= - 84.

Diket : a=6 b= -3 c=-5
Dit. : 3ab-2bc
Jwab : 3(6)(-3)-2(-3)(-5)
-54-30
= -84
Hmm sorry klo salah