Question

Решите уравнение
x²=12

Answer 1

${x}^{2} = 12 \\ x = \frac{ + }{ - } \sqrt{12} \\ x = \sqrt{4 \times 3} \\ x = 2 \sqrt{3}$

Answer 2

х²=12

х=±√12

х=±2√3

х1= -2√3; х2=2√3.