Question

The binomial (x + 5) is a factor of x2 + 8x + 15. What is
the other factor?
2
+x
+x
(x + 3)
(x + 7)
(x + 12)
(x + 13)
+

Answer 1

Let's factor the polynomial:

$x^2+8x+15\rightarrow(x+5)(x+3)$

Thereby, the other factor is:

$(x+3)$