If x -9 is a factor of x^2 -5x-36 , what is the other factor ?

(x + 4) (x - 9)

Step-by-step explanation:

Factor the following:

x^2 - 5 x - 36

The factors of -36 that sum to -5 are 4 and -9. So, x^2 - 5 x - 36 = (x + 4) (x - 9):

(x + 4) (x - 9)

a² + b²= c²

24² + 7² = c²

c= 25