Question: The function f is defined by f: x 2x + k , x R where k is a constant. The function g is defined by

The function f is defined by f: x 2x + k , x R where k is a constant. The function g is defined by g : x x2 - 6x + 8 x R. (i) Find the set of values of k for which the equation f(x) = g(x) has no real solutions.

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