Respuesta :

PhillSwift

Answer:

x = 5

Step-by-step explanation:

5x5 = 25

25- 10 = 15

15 = 15
Roots: 5 and -3
The factors are -5 and 3 because they add to -2 and multiply to -15.
X^2 -2x = 15
-15 -15
X^2 -2x -15 = 0
(X -5) (x +3)
X= 5 and -3