Question

Помогите пожалуйста)))

Answer 1

${x}^{2} = 7 \ x1 = sqrt{7} \ x2 = - sqrt{7}$

Answer 2

${x}^{2} = 7 \ x = - sqrt{7} \ x = sqrt{7} \ x1 = - sqrt{7} \ x2 = sqrt{7}$