[tex] \sqrt[3]{ {x}^{2} + 14x - 16} = - 4 \\ {x}^{2} + 14x - 16 = - 4 {}^{3} \\ {x}^{2} + 14x - 16 = -6 4 \\ {x}^{2} + 14x - 16 + 64 = 0 \\ {x}^{2} + 14x + 48 = 0 \\ x_{1} + x_{1} = - 14 \: \: \: \: \: \: \: \: x_{1} = - 8 \\ x_{1}x_{2} = 48 \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: x_{2} = - 6 \\ \\ Ответ: \: - 8 \: ; \: - 6[/tex]
[tex] \sqrt{2x - 1 } = 3 \\ 2x - 1 = 3 {}^{2} \\ 2x - 1 = 9 \\ 2x = 9 + 1 \\ 2x = 10 \\ x = 10 \div 2 \\ x = 5 \\Ответ: \: 5[/tex]
[tex] \sqrt{x - 2} = 3 \\ x - 2 = 3 {}^{2} \\ x - 2 = 9 \\ x = 9 + 2 \\ x = 11 \\Ответ: \: 11[/tex]
[tex] \sqrt{ {x}^{2} + x + 4} = 4 \\ {x}^{2} + x + 4 = 4 {}^{2} \\ {x}^{2} + x + 4 = 16 \\ {x}^{2} + x + 4 - 16 = 0 \\ {x}^{2} + x - 12 = 0 \\ x_{1} + x_{1} = - 1 \: \: \: \: \: \: \: \: x_{1} = - 4 \\ x_{1}x_{2} = - 12 \: \: \: \: \: \: \: \: \: \: \: x_{2} = 3 \\ Ответ: \: - 4 \: ; \: 3[/tex]