Question

Value of x²=4; then value of x will be:​

Answer 1

2 or -2

Step-by-step explanation:

QUESTION :-

Value of x² = 4 ; Then the value of x will be

__________________________

SOLUTION :-

=> x² = 4

=> √x² = √4

=> x = ±2

=> x = 2 or -2

Hence,

The value of x will be 2 or -2.

_________________________

TO VERIFY :-

x = 2

=> x² = 4

=> (2)² = 4

=> 4 = 4

=> LHS = RHS

Verified.

x = -2

=> (-2)² = 4

=> 4 = 4

=> LHS = RHS

Verified.

_________________________

Hope it helps.

#BeBrainly :-)

Answer 2

Given: The equation is$x^{2} =4$.

We have to find the value of$x$.

As we know that the square root is the number that we need to multiply by itself to get the original number.

For example, $2$is the square root of$4$, as$2\times2 = 4$.

We are solving in the following way:

We have,

$x^{2} =4\\=>x=\sqrt{4} \\=>x=2 \ \ \ ...[2\times2=4]$

Hence, the value of$x$ is$2$.