Question

if x= -1/3 is a zero of a polynomial P(x)=27 x^3 - ax^2-x+3, then find the value of a ​

Answer 1

Answer:

a=18

Step-by-step explanation:

for X=-1/3

p(1/3)= 0

27(-1/27)-a/9+3=0

-1-a/9+3=0

2-a/9=0

(18-a)/9=0

a=18