Question

find thfind the zeros of the polynomial quadratic polynomial and verify the relationship between the zeros and the cofficients
(i) x2 - 2x -8​

Answer 1

Step-by-step explanation:

splitting the middle term

x2-4x+2x-8

x(x-4)+2(x-4)

(x-4) (x+2)

hence zeros are +4,-2

sum = alpha +beta=2

-b/a=2

hence 2=2

product alpha *beta =-8

c/a=-8

hence-8=-8

hence verified