Question

1. Find the value of k, If
x+1 is a factor of
7x^3+2x²–2x-k.​

Answer 1

Answer:

- 3

Step-by-step explanation:

If x + 1 is a factor of 7x^3+2x^2-2x-k Then

p(- x ) = 0

p(- 1) = 7 × (-1) ^3 + 2 × (- 1) ^2 - 2 × (-1) -k = 0

7 × (-1) + 2 ×  1 - 2 × -1 -k = 0

then K = - 7 + 2 +2

           =  - 3