Answer:
The cubic polynomial is .
Step-by-step explanation:
It is given that the degree of the polynomial is 3 and the polynomial has same roots. The polynomial passing through (0,-5).
The polynomial function is defined as
Where c is a constant, are roots with multiplicity .
Since the degree of the polynomial is 3 and it has same roots therefore the multiplicity of root is 3.
The polynomial passing through (0,-5).
So the equation of the polynomial is,
Where a is the root of polynomial.
Therefore the cubic polynomial is .