Question

If y=-1 is a zero of the polynomial q (y) = 4y^3 + ky^2- y -1, then find the value of k

Answer 1

Answer:

k = 4

Step-by-step explanation:

Since y=-1 is a zero we can substitute it and equate to zero as

4(-1)^3+k(-1)^2-(-1)-1 =0

4(-1) +k +1 -1 = 0

-4 +k =0

k =4

Answer 2

Answer:

answer for the given problem is given