Question

даю 25 баллов
х^3-3х^2=4х-12

Answer 1

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

Ответ:-2;2;3

Answer 2

х3 - 3х2 - 4х + 12 = 0

х2(х - 3) - 4(х - 3) = 0

(х2 - 4) (х - 3) = 0

х2 - 4 = 0. х - 3 = 0

х2 = 4. х = 3

х = ± 2

Ответ: -2; 2; 3.