The cubic polynomial function for the given zeroes is x³ + 5x² - 16x - 80.
Given, x = -4, -5, and 4 are the zeros of the cubic polynomial.
A cubic polynomial is a polynomial that has highest degree of the variable 3.
Therefore, this cubic polynomial is satisfied by all three values of x given above.
Hence, the cubic polynomial will be:
(x + 4)(x + 5)(x - 4)
= (x + 4)(x - 4)(x + 5)
= (x² - 16)(x + 5)
= x³ - 16x + 5x² -80
= x³ + 5x² - 16x - 80
Learn more about cubic polynomial here: https://brainly.com/question/23337319
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