Question

A polynomial has one root that equals 5 - 7i. Name one other root of this polynomial.

Answer 1

The other polynomial is 5 + 7i.

Answer 2

For this case we have a polynomial with the following root:

5 - 7i

The first thing we must observe is that the root is a complex number.

When the root is a complex number, we always have the conjugate complex of this number, it is also a root of the polynomial.

Therefore, another root of the polynomial is given by:

5 + 7i

Answer:

other root of this polynomial is:

5 + 7i