решите уравнения
[tex](x + 11 { )}^{2} - {x}^{2} = 11 \\ 69 - (13 - y {)}^{2} = - {y}^{2} \\ 44 + {z}^{2} = (12 + z {)}^{2} \\ 31 - {t}^{2} = - (t - 9 {)}^{2} [/tex]
[tex](x + 11 { )}^{2} - {x}^{2} = 11 \\ 69 - (13 - y {)}^{2} = - {y}^{2} \\ 44 + {z}^{2} = (12 + z {)}^{2} \\ 31 - {t}^{2} = - (t - 9 {)}^{2} [/tex]
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