Question

The binomial (a + 5) is a factor of a2 + 7a + 10. What is the other factor?

Answer 1

(a+5)(a+2) = a^2 + 7a + 10
look at what adds to make 7 and multiplies to make 10
as you know one is 5, the other is 2 and 5 + 2 = 7 so both positive
(a+2)

Answer 2

the correct answer is 2

The binomial (a + 5) is a factor of a2 + 7a + 10. What is the other factor?

a2 + 7a + 10 = (a + 5)(a +  ⇒ 2)