Question

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

(a+2)
(a+5)
(a−2)
(a−5)

Answer 1

a

Explanation:

Answer 2

(a+2)

Explanation:

a²+7a+10 = (a + 5) (a + 2)

a + 5

X 5a + ?a = 7a => 5a + 2a = 7a, 5 × ? = 10 => 5 × 2 = 10

a + 2

______

(a + 5) (a + 2)