(2x - 6)^2 = (2x - 6)(2x - 6) = 4x^2 - 12x - 12x + 36 = 4x^2 - 24x + 36
Answer and work is shown in picture :)
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Answer: The 3rd one! Letter C.
Step-by-step explanation:
I used a calculator!
The solution to this problem is 743008370688