Question

Find p(1), p(-1), p(-2) for the following polynomials:
(i ) P(x) = 10x - 4x²-3
(ii) p(y) = (y + 2) (y - 2).​

Answer 1

Answer:

Step-by-step explanation:

(i). p(-1) = 10×(-1) - 4(- 1)² - 3 = - 17

 p(-2) = 10×(-2) - 4(-2)² - 3 = - 39

 p(1) = 10×1 - 4(1) - 3 = 3

(ii). p(1) = (1 + 2)(1 - 2) = -3

   p(-1) = (- 1 + 2)(- 1 - 2) = - 3

  p(-2) = (- 2 + 2)(- 2 - 2) = 0