It is possible for a 4th-degree function to have 3 real zeros amidst other complex zeros.
Yes, it is possible to have exactly 3 Real zeros in a 4th-degree function.
An example of such a function is f(x) = (x - 1)(x - 2)(x - 3)(x + 4), which has three real zeros at x = 1, x = 2, and x = 3.
This illustrates that a 4th-degree function can indeed have exactly 3 Real zeros, alongside the potential for complex zeros.
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