Question

. If x² = -4, then the value of x is​

Answer 1

Step-by-step explanation:

Given:

The equation $x^{2} =4$

To find:

The value of x.

Solution:

To solve the quadratic equations, the following steps should be followed:

$x^{2} =4$  (This type of equations are univariate)

$\Rightarrow x=\sqrt{4}$    [∵ the inverse of square power is square root.]

$\Rightarrow x=\pm 2$

$\Rightarrow x=+2$ or $-2$

Hence, the value of x is +2 or -2.