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3)menang=3
kalah=-2
draw=1
nilai regu=12menang+6kalah+2draw
=12(3)+6(-2)+2(1)
=36+(-12)+2
=24+2
=26
4)
misal bilangan pertama=a
misal bilangan kedua=b
a *b=3a+2b
- 5*4=3(-5)+2(4)
=-15+8
=-7