Question

if P(x)=2x³+4x2-2x-1,then P(-1)= ​

Answer 1

Step-by-step explanation:

putting -1 in the equation we get

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

= -2+4+2-1

= 6-3

=3

Answer 2

Answer:

3

Step-by-step explanation:

P(x)=2x³+4x2-2x-1

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

=2(-1)+4(1)+2-1

= -2+4+2-1

=3