Answer:
30
Explanation:
I used PEMDAS for this equation. Since t = 2 and x = 3, we need to replace the variables with the given numbers first in order to evaluate the expression:
3(2*3*2 - 2)
Next, use PEMDAS to solve.
Parenthesis: (2*3*2) = 12 - 2 = 10
Multiply: 3*10 = 30
Hopefully I did it right, wasn't sure if you multiply the x with the twos or not :)