Math, asked by tanya8275, 1 year ago

please answer anything as possible

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Answered by BEJOICE
1

question \: 17. \\ 3x + 2y = 12 \:  \:  \:  \:  \:  \: and \:  \: xy = 6 \\ 9 {x}^{2}  + 4 {y}^{2}  =  {(3x + 2y)}^{2}  - 12xy \\  =  {12}^{2}  - 12 \times 6 = 72
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