Question

If x3 + 6x2 + 4x + k is exactly divisible by (x + 2), then kis O (D) -10 O (A) -6 O (C) -8 O (B) -7​

Answer 1

Answer:

k=-8

Step-by-step explanation:

x^3+6x^2+4x+k=0

x+2=0

x=-2

-2^3+6*(-2)^2+4(-2)+k=0

-8+24-8+k=0

8+k=0

k=-8