SOLUTION: A binary operation is defined as p*q=3p-q. Evaluate (1*2)*3

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Question 1186609: A binary operation is defined as p*q=3p-q. Evaluate (1*2)*3
Found 2 solutions by MathLover1, ikleyn:
Answer by MathLover1(20850)   (Show Source): You can put this solution on YOUR website!
A binary operation is defined as . Evaluate
=> and
Substitute , into the formula

Answer by ikleyn(52799)   (Show Source): You can put this solution on YOUR website!
.
A binary operation is defined as   p*q = .   Evaluate   (1*2)*3.
~~~~~~~~~~~~~~~~ 

We move from left to right and make operation in parentheses, first :


    (1*2) = . -  = 3 - 2 = 1.


using the definition.


Then we make next operation 


    (1*2)*3 = 1*3 = we use the definition, again = . -  = 3 - 3 = 0.    ANSWER

Solved.



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