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andreev551 [17]

3 years ago

15

2=2 3=6 4=12 5=20 6=30 8=?

1 answer:

Ratling [72]3 years ago

3 0

56 because
2(1)=2
3(2)=6
4(3)=12
5(4)=20
6(5)=30
7(6)=42
8(7)=56

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