Answer:
Irrational conjugates.
Step-by-step explanation:
The given roots are
\((a+\sqrt{b)} (a-\sqrt{b)}\)
The two expressions are conjugate.
Here \(\sqrt{b}\) is an irrational number.
The irrational conjugates theorem states that if a + √b is an irrational root to a polynomial, then its irrational conjugate a - √b is also a root.