Answer: Another root of the same function is 7-2i.
Step-by-step explanation: Given that 7+2i is a root of a polynomial function.
We are to find the another root of the same function.
We know that
if a complex number a+ib is one of the roots of a polynomial function f(x), then the conjugate a-ib is another root of the same polynomial f(x).
According to the given information, the conjugate of 7+21, that is, 7-2i is another root of the same polynomial function.
Thus, another root of the same function is 7-2i.