Question

if x-a is a factor of x3-3x2a+2a2x+b than b=​

Answer 1

Answer:

0

Step-by-step explanation:

Let P(x)=x

3

−3x

2

a+2a

2

x+b

Given, (x−a) is a factor of P(x)

∴P(a)=0

⇒(a)

3

−3(a)

2

a+2a

2

(a)+b=0

⇒a

3

−3a

3

+2a

3

+b=0

⇒3a

3

−3a

3

+b=0

⇒b=0