Предмет: Алгебра, автор: dhdududududu

Решите уравнение.Полное решение.
Заранее спасибо.

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Ответы

Автор ответа: akhunovaaliyap6akzm

1

3x^2-12=0
3(x^2-4)=0 | :3
(x-2)(x+2)=o
x-2=0
x=2
и x+2=0
x=-2
Ответ: x=2 и x=-2.

Автор ответа: Krusty76

0

$3x^{2} - 12 = 0$
$3x^{2} = 12$
$x^{2} = 12 / 3 = 4$
$x = \sqrt{4 } =$ +/- 2

Ответ: +/- 2

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