Question

if one of the factors of x square +x-20 is (x+5),find other factor​

Answer 1

Answer:

other factor is (x - 4)

Step-by-step explanation:

x² + x - 20

x² + (5 - 4)x - 20

x² + 5x - 4x - 20

x(x + 5).-4(x + 5)

(x - 4)(x + 5)

x - 4 = 0 , x + 5 = 0

x = 4 , x = -5