SOLUTION: How do I find if the following operator is associative: a*b = a+2b-ab

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Question 179326: How do I find if the following operator is associative:
a*b = a+2b-ab
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Check to see if
(a*b)*c = a*(b*c)
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If these are equal the operation is associative.
Cheers,
Stan H.