Math, asked by shiwanidhonchak9679, 8 months ago

kx^3+4x^2-lx+5 divisible by (x^2-1) find the value k and l?​

Answers

Answered by bhattacharyarittik06
0

Answer:

The answer is

k

=

2

Explanation:

Let

f

(

x

)

=

x

3

+

k

x

2

+

x

+

5

When

f

(

x

)

is divided by

(

x

+

2

)

, the remainder is

=

3

This is the remainder theorem

so,

f

(

2

)

=

8

+

4

k

2

+

5

=

3

4

k

=

3

+

5

=

8

k

=

2

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