Question

if p (x)=2x^3-3x^2+2x-4 then find the value of p(-1)+p(2)​

Answer 1

Step-by-step explanation:

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

=2*(-1)-3-2-4

= -2-3-2-4

= -11

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

=(2*8)-(3*4)+4-4

=16-12+4-4

=4

p(-1)+p(2)= -11+4= -7