Question

if p(x) = x^3 - 1 then find the value p(1) +p(-1) ap​

Answer 1

if p(x)=x^3-1,

then you have to substitute 1 and -1 in x.

Answer 2

Answer:

-2

Step-by-step explanation:

Solution :

Given that p(x) =x^3 - 1. - - - - (i)

We have to find p(1)+p(-1)=?

Putting x=1 in equation (i)

P(1)=1^3-1=1-1=0 - - - - (ii)

Again, putting x=-1 in equation(i)

P(-1)=(-1)^3 - 1=-1-1=-2 - - - - (iii)

Now adding equation (ii) & (iii), we get

P(1)+p(-1)=0-2

=-2 ans.