Final answer:
The two roots a±b and a−b are referred to as conjugate radicals. The substitution of the numerical values into the quadratic formula reveals how roots are calculated, though the operations provided are incomplete or incorrect.
Step-by-step explanation:
The two roots a±b and a−b are called conjugate radicals. When substituting the values, a = 3, b = 13, c = -10 in the quadratic formula, we can calculate the roots of a quadratic equation. However, the given mathematical operations appear to be incorrect or incomplete. In solving quadratic equations using the quadratic formula, −b ± √ (b² - 4ac), over 2a, the radicals that are the subject of the question would be the square roots that appear within the solution obtained.