Question

P(x
)=2x³-5x²+x+3. Find p(2) and p(-1)

Answer 1

Answer:

Step-by-step explanation:

By substituting 2 in p(x) we get p(2)

p(2)=2(2^3)-5(x^2) +2+3

=2(8)-5(4)+5

=16-20+5

p(2)=1

By substituting -1 in p(x) we get p(-1)

p(-1)=2((-1)^3)-5((-1)^2)+(-1)+3

= 2(-1)-5(1)-1+3

= -2-5-1+3

p(-1)= -5