Question

if (x+2) be a factor of the polynomial p(x)=kx³+x²-12x-4,then find the value of k

Answer 1

Sorry, don't know because we still didn't get this kind of sums

Answer 2

According to the question:
x+2 = 0
x = -2
k(-2)³+(-2)²-12*-2-4 = 0
-8k+4+24-6=0
-8k+22=0
-8k=-22
k= -22/-8
k = 11/4

Hope this helps ^_-