Question

if alpha and bet are the zeros fo Q.P x2-x-2, then find the value of alpha - beta

Answer 1

Answer:

Step-by-step explanation:

Answer 2

x^2 - x - 2 = 0

alpha + beta = 1

alpha*beta= -2

then

(alpha-beta)^2=(alpha + beta)^2 - 4alpha*beta

alpha - beta = root ( 1 - (-8))

alpha - beta = 3