Question

(x2 - x - 20) = (x + 4)​

Answer 1

Answer:

x=6.

Step-by-step explanation:

x^2-x-20=(x+4). x^2-5x+4x-20=(x+4). x(x-5)+4(x-4)=(x+4). (x-5)(x+4)=(x+4). x-5=1. x=1+5=6. I hope it will help you.