



 
We have two responses for you Hi Francesca, I expect the definition of * is
To check if this operation is associative let a, b and c be any integers and see if you can verify that
If you think it i not true you can verify that by finding specific integers a, b and c and showing that a*(b*c) ≠ (a*b)*c If you need further help write back,
Francesca, An operation * is associative if (a*b)*c = a*(b*c) for all possible a, b and c. Victoria  


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