Question

The value of k, if (x – 1) is a factor of 4x3 + 3x2 – 4x + k, is
(a) 1
(b) 2
(c) -3
(d) 3

Answer 1

Answer:

Correct option is

−3

Since x−1 is a factor of the polynomial p(x)=4x

3

+3x

2

−4x+k

Therefore, by Factor theorem p(1)=0

⇒4(1)

3

+3(1)

2

−4(1)+k=0

⇒4+3−4+k=0⇒k=−3

Option D is correct.

Answer 2

Answer:

I think C =》-3 is the correct answer...