Cevap:
[tex]3(x {y}^{2} + y {x}^{2} ) = 3.2[/tex]
[tex]3x {y}^{2} + 3y {x}^{2} = 6 \: \: \: \: {x}^{3} + {y}^{3} = 58[/tex]
taraf tarafa toplarsak
[tex] {x}^{3} + 3y {x}^{2} + 3x {y}^{2} + {y}^{3} = 64[/tex]
[tex] {(x + y)}^{3} = 64[/tex]
[tex]x + y = 4[/tex]
olur
