Question

please please please solve it it's very urgent​

Answer 1

$i \: think \: you \: need \\ to \: find \: {x}^{2} + {y}^{2} \\ given \: that \\ x + y = 12 \: and \: xy = 14 \\ {(x + y)}^{2} = {x}^{2} + {y}^{2} + 2xy \\ now \: putting \: the \: values \: \\ {12}^{2} = {x}^{2} + {y}^{2} + 2 \times 14 \\ 144 = {x}^{2} + {y}^{2} + 28 \\ {x}^{2} + {y}^{2} = 144 - 28 \\ {x}^{2} + {y}^{2} = 116 \\ hence \: the \: value \: of \: {x}^{2} + {y}^{2} \\ is \: 116$