Juan's work for solving by completing the square is below. In which step (If any) does Juan make a mistake? 12x + 8 = 0
1. ? - 12 = -8
2. ? - 120 + 36 = -8 +36
3. (x-6)= 28
4. 2-6 = 1728
5. 2 - 6 = 127
6. x = 6+277
Plz help me

What is the approximate circumference of the circle shown below?

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