Question

Give answer The sum of remainder obtained when x cube + k + 8 x + k is divided by x minus 2 and when it is divided by x + 1 is 0 find the value of k

Answer 1

Explanation:

3

+(k+8)x+k

Put x=2 to obtain first remainder

⇒R

1

=(2)

3

+(k+8)

2

+k=24+3k

Put x=−1 to obtain second remainder

⇒R

2

=(−1)

3

+(k+8)+k=−9

So R

1

+R

2

=0

⇒24+3k−9=0

⇒3k=−15

⇒k=−5.

solution