Question

Wyznacz współczynniki b,c, wielomianu W(x) = 2x^2 - bx + c tak aby (w(1) = 3 i w (-1)= 0 .

Answer 1

W(x) = 3x² - bx + c

{3 = 3 - b + c
{0 = 3 + b + c
--------------------
- 3 = 2c |: 2
c = -1.5

0 = 3 - b - 1.5
-3 = -1.5 -b
b = -1.5