Respuesta :

Answer:

Given :

→x-y=12

→xy= 3²

=9

Equation formed:

[tex] {(x - y)}^{2} = {x}^{2} + {y}^{2} - 2xy[/tex]

Step by step explanation:

[tex] {(12)}^{2} = {x}^{2} + {y}^{2} - 2 \times 9 \\ 144 + 18 = {x}^{2} + {y}^{2} \\ = 162[/tex]

hope it helped you:)

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