Question

find p (-1) for following polynomial p(x) =2+x-x² +2x³​

Answer 1

Answer:

p ( - 1 ) = 2

Step-by-step explanation:

p ( x ) = 2 + x - x² + 2x³​

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

          = 2 - 1 - 1 + 2 ( - 1 )

          = 2 - 2 + 2

p ( - 1 ) = 2