Question

if minus one and two are two zeros of polynomial two X cube minus X square minus five X minus two then find its third zero​

Answer 1

Answer:

Alpha = -1

Bheta = 2

a= 2 , b= -1 c= -5

Alpha + Bheta + gama= -b/a

-1+2+ g = -(-1)/2

1+g = 1/2

g= 1/2-1

g= 1-2/2

g = -1/2

Hence G is the third zero

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