Odpowiedź :
Odpowiedź:
f(x) = x² + bx + c
a = 1
x₁ = - 4
x₂ = 2
f(x) = (x - x₁)(x - x₂) = (x + 4)(x - 2) = x² + 4x - 2x - 8 = x² + 2x - 8
b = 2
c = - 8
Odpowiedź:
f(x) = x² + bx + c
a = 1
x₁ = - 4
x₂ = 2
f(x) = (x - x₁)(x - x₂) = (x + 4)(x - 2) = x² + 4x - 2x - 8 = x² + 2x - 8
b = 2
c = - 8