Question

If alpha and beta are zeroes of the polynomial x^2-6x+a, find the value of a if beta = -2

Answer 1

alpha +beta =-b/a (formula)

alpha +beta=6/1

alpha =6-(-2)

alpha =8

alpha ×beta=c/a (formula)

8×-2=a

a=-16

Answer 2

Answer:

Step by step explanation:-

p( x) = x²–6x+a

α+β=–b/a

α+(–2)=–(–6)/1

α=8

α.β=c/a

8×(–2)=a/1

a=–16

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