The function superpower receives two inputs x and n and should return x⁴n-2. X is a real number and n is a positive integer.
a) superpower(x, n) = x(4n-2)
b) superpower(x, n) = x(4ⁿ-2)
c) superpower(x, n) = (x⁴)ⁿ-2
d) superpower(x, n) = n(4n)⁻2