Question

ii). If 4X=8 3 then the
value of x is
A)3/2. B)9/2. C)3. D)9​

Answer 1

Answer:

Correct option is

B

3

Since we know that kx

3

+9x

2

+4x−8 is divided by x+3 and it leaves remainder −20 then we can say

kx

3

+9x

2

+4x−8=(x+3).p(x)−20

put x=−3

−27k+81−12−8=−20

−27k+81−20=−20

81=27k

3=k⇒k=3

Option (B)