Check if the two functions are equivalent by constructing a table of values.

$\displaystyle {y}=$$\displaystyle {2}{x}^{{2}}-{4}{x}-{16}$ $\displaystyle {x}$ $\displaystyle {y}$ -3 -2 -1 0 1 2 3

$\displaystyle {y}=$$\displaystyle {2}{\left({x}+{2}\right)}{\left({x}-{4}\right)}$ $\displaystyle {x}$ $\displaystyle {y}$ -3 -2 -1 0 1 2 3

Based on the values of each function, do the two functions appear to be equivalent?