Question

find the zeros of x2 -9and hence verify the relation( Gama +β=-b/a?

Answer 1

Answer:

Step-by-step explanation:we can solve it by using split the middle term method

x2+0x-9=0

x2+3x-3x-9=0

x(x+3)-3(x+3)

x+3=0 , x-3=0

x=-3 and x=+3

hence alpha =-3 beta =+3 now,

alpha + beta =-b/a

-3+3=0/1

0=0

hence verified