Question

find the value of a​

Answer 1

Answer:

a= 132

Step-by-step explanation:

x+6is factor

the zero of polynomial x+6 =-6

so, putting the zero of polynomial we get

(-6)^3 +3(-6)^2 +4(-6)+a = 0

or, -216 +108 -24 +a =0

or, a= 240 -108

or, a= 132