Question

1. If P(x) =x3+3x2-2x+4, find the value of p(-2) + p(1) + p(0) ?

Answer 1

Answer:

22

Step-by-step explanation:

p(x) = x³ + 3x² - 2x + 4

⇒p(-2) = (-2)³ + 3(-2)² -2(-2) + 4

           = -8 + 3(4) +4 + 4

           = -8 + 12 + 8

           = 12

⇒p(1) = (1)³ + 3(1)² -2(1) +4

         = 1 + 3 - 2 +4

         = 6

⇒p(0) = (0)³ + 3(0)³ -2(0) + 4

          = 4

∴ p(-2) + p(1) + p(0)  = 12 + 6 + 4 = 22