Question

If (x-a) is a factor of
x^3 -3x^2a+2ax^2+b​

Answer 1

Answer:

Given x−a is a factor of x

3

−2ax

2

+x−9−a

⟹a

3

−2a

3

+a−8−a=0

⟹a

3

+8=0

⟹a=−2