Question

anyone please solve the question.​

Answer 1

Answer: 3

Step-by-step explanation:

$x^{2}$-x-2=0

$x^{2}$-2x+x-2=0

x(x-2)+1(x-2)=0

(x-2)(x+1)=0

x=-1,2

x1=-1

x2=2

x1+2x2= -1+2*2 = 4-1=3