Question

if x-a is a factor of x^3-3x^2a+b then the value of b​

Answer 1

Answer:

no ...............................

Answer 2

Let P(x)=x3−3x2a+2a2x+b

Given,  (x−a) is a factor of P(x)

∴P(a)=0

⇒(a)3−3(a)2a+2a2(a)+b=0

⇒a3−3a3+2a3+b=0

⇒3a3−3a3+b=0

⇒b=0