Question

the value of k ,if (x+1) is a factor of x3+x2-4x+k

Answer 1

Answer:

x+1=0

x=-1

Putting the value of x in the polynomial

(-1)³+(-1)²-4(-1)+k=0

-1+1+4+k=0

4+k=0

k=-4

Hope it helps you!