Which expression is not equivelent to 7

If f(x) = 6x – 4, what is f(x) when x = 8? a2 b16 c44 d52

(05.03 mc) part a: explain why the x-coordinates of the points where the graphs of the equations y = 4x and y = 2x−2 intersect are the solutions of the equation 4x = 2x−2. (4 points) part b: make tables to find the solution to 4x = 2x−2. take the integer values of x between −3 and 3. (4 points) part c: how can you solve the equation 4x = 2x−2 graphically? (2 points)

Solve the inequaliy: (x^2+2)(x−2)^2(6−2x)> 0