Question

p(X)=2x^3-x+4 find p(-1)

Answer 1

P(-1) = 2(-1)³-(-1)+4

= 2(-1)+1+4

= -2+5

= 3

Answer 2

Answer:

at the place of x we put -1.

p(-1)=2(-1)^3-(-1)+4

=-2+1+4

=3

so answer is 3