Question

calcular "x" ayúdenme pliss

Answer 1

Respuesta:

=2

Explicación paso a paso:

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

$2 {x}^{2} = 4 + 4$

$2 {x}^{2} = 8$

${x}^{2} = \frac{8}{2}$

${x }^{2} = 4$

$x = \sqrt{4}$

$x = 2$