Question

$x^{2} -2=2$


х+12=8


???????

Answer 1

Объяснение:

1.

${x }^{2} - 2 = 2 \\ {x}^{2} = 2 + 2 \\ {x}^{2} = 4 \\ x1 = \sqrt{4} = 2 \\ x2 = - \sqrt{4} = - 2$

2.

$x + 12 = 8 \\ x = 8 - 12 \\ x = - 4$

Answer 2

Ответ:

х²-2=2

х²=2+2

$\sqrt{x} = 4$

х=2

х=-2

.........

Х+12=8

Х=8-12

Х=-4