Question

X^2-4=0 уравнение надо решить​

Answer 1

х² - 4 = 0,

(х - 2)(х + 2) = 0,

х - 2 = 0,    х + 2 = 0,

х1 = 2,         х2 = -2,

или:

х² - 4 = 0,

х² = 4,

х = ±√4,

х1 = 2,  х2 = -2

Answer 2

$x {}^{2} - 4 = 0$

У нас тут формула

(х-2)×(х+2)=0

Приравниваем части

1)х-2=0 или 2)х+2=0

В 1-ом случае, у нас получается х=2

Во 2-ом х=-2

Ответ: х=±2

Answer 3

To solve the equation $x^2 - 4 = 0$, we'll follow these steps:

Step 1: Move the constant term to the other side of the equation: $x^2 = 4$

Step 2: Take the square root of both sides (remembering to consider both the positive and negative square roots): $x = \pm \sqrt{4}$

Step 3: Simplify the square root: $x = \pm 2$

So, the solutions to the equation are $x = 2$ and $x = -2$.