Question

if f(x)= x^2 - x - 4 find α&β​

Answer 1

Answer:

x=2or-2

Step-by-step explanation

x^2-2x-2x-4=0

x(x-2)+2(x-2)=0

(x+2)(x-2)=0

put both x+2 and x-2=o

we get x=2or -2