Verified answer

[tex] {x}^{2} \times {y}^{2} = + 36. + 25. + 6.400[/tex]

[tex]x = - 3. - 1. - 10[/tex]

[tex]y = + 2. - 5. + 18[/tex]

[tex]x + y = - 1. - 6. + 8[/tex]

[tex]x - y = - 1. - 4. + 8[/tex]

[tex]x \times y = - 6. + 5. - 180[/tex]