Question

If -1 is a zero of the polynomial p(x) =ax^3-x^2+x+4 then find the

value of a​

Answer 1

Answer:

7/3

Step-by-step explanation:

ax3-x2+x+4=0

a(-1)3-(-1)2-(-1)+4=0

-3a+2+1+4=0

-3a+7=0

-3a=-7

a=-7/-3

a= 7/3

Answer 2

Answer:

a = -4

Step-by-step explanation:

x=-1

replacing x with -1

= -a + 1 - 1 + 4

Now, -a + 1 - 1 + 4 = 0

or, -a = 4

or, a = -4

Therefore, a = -4