Răspuns :
Vezi in poza atasata. Asta in cazul in care ai cerut rezolvarda ecuatiei. Daca vrei doar descompunerea in factori ajungi la
(x-1)(x-2)(x+2).
Nu se intelege exact ce doresti...
(x-1)(x-2)(x+2).
Nu se intelege exact ce doresti...
x³ - x² - 4 x + 4 = 0
x² ( x - 1) - 4 ( x - 1) = 0
( x - 1) ( x² - 4) = 0
( x - 1) ( x - 2) ( x + 2) = 0
x - 1 = 0 ⇒ x₁ = 1
x - 2 = 0 ⇒ x₂ = 2
x + 2 = 0 ⇒ x₃ = - 2
x² ( x - 1) - 4 ( x - 1) = 0
( x - 1) ( x² - 4) = 0
( x - 1) ( x - 2) ( x + 2) = 0
x - 1 = 0 ⇒ x₁ = 1
x - 2 = 0 ⇒ x₂ = 2
x + 2 = 0 ⇒ x₃ = - 2