Suppose that $$f(x) = 2 x^2(4 - 4 x)^{5}.$$
(A) Find an equation for the tangent line to the graph of $f$ at $x = 2$.

Tangent line: $y$ =

(B) Find the average of all values of $x$ where the tangent line is horizontal. If there are no such values, enter -1000.

Average of $x$ values =