For each polynomi

p(2) means substitute value 2 in the polynomial in place of variable

p(1) means substitute value 1 in the polynomial in place of variable

p(0) means substitute value 0 in the polynomial in place of variable

p(t) = 2 + t + t² – t³

the variable is t substitute it with values 2, 1 and 0 to find p(2), p(1) and p(0) respectively

p(2)

⇒ p(2) = 2 + 2 + 2² – 2³

⇒ p(2) = 2 + 2 + 4 – 8

⇒ p(2) = 8 – 8

⇒ p(2) = 0

p(1)

⇒ p(1) = 2 + 1 + 1² – 1³

⇒ p(1) = 2 + 1 + 1 – 1

⇒ p(1) = 3

p(0)

⇒ p(0) = 2 + 0 + 0² – 0³

⇒ p(0) = 2