Question

Find the value of p(-1) +p(1) if p(x) =x^3-x^2+x+1

Answer 1

Answer:

0

Step-by-step explanation:

It is easy.

substitute the values of 1 and -1 in such equation.

we get p(1)=-1 and p(-1)=1.

Then their sum is 0.

Answer 2

Answer:

Step-by-step explanation:

p(-1) = (-1)^3-(-1)^2+(-1)+1

      = -1 -1 -1+1

     = -2

p(1) = (1)^3-(1)^2+(1)+1

      =1 -1+1+1

       =2

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