Question

Find the value of p(-1)=4x^4+5x^3-x^2+6

Answer 1

p(- 1) = 4

Explanation:

To evaluate p(- 1) substitute x = - 1 into p(x), that is

p(- 1) = 4
`(-1)^(4)` + 5(- 1)³ - (- 1)² + 6

= 4(1) + 5(- 1) - 1 + 6

= 4 - 5 - 1 + 6

= 4