need help ASAP just with part b and c.
Part A: Explain why the x-coordinates of the points where the graphs of the equations y = 4^x and y = 2^x−2 intersect are the solutions of the equation 4^x = 2^x−2.
Part B: Make tables to find the solution to 4^x = 2^x−2. Take the integer values of x between −3 and 3.
Part C: How can you solve the equation 4^x = 2^x−2 graphically?