I don't understand this question at all. What does the vector symbol above the x^2 mean?

For\ f(x)=|x-2|\vec{x}^2-6x+8\ and\ a=2, discuss\ the\ limiting\ behaviour\ of f(x)\ as\ x \rightarrow a^+, as\ x \rightarrow a^-\ and\ as\ x \rightarrow a