Question

X3 -7x2 +16x-12=0 Atrisini vienādojumu!

Answer 1

x^3 - 7x^2 + 16x - 12 = 0 
Сгруппируем

x^3 - 3x^2 - 4x^2 + 12x + 4x - 12 = 0 
x^2 (x - 3) - 4x (x - 3) + 4(x - 3) = 0 
(x - 3) (x^2 - 4x + 4) = 0
(x - 3) (x - 2)^2 =  0

x - 3 = 0 
x = 3 

(x - 2)^2 =  0
x - 2 = 0 
x = 2 

Ответ
2 ; 3