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Dimitri thinks of two numbers. They add together to make 17 and multiply to make 60 ​

Răspuns :

Explicație pas cu pas:

[tex]x + y = 17 \\ xy = 60[/tex]

[tex]x = 17 - y \\ (17 - y)y = 60 \\ {y}^{2} - 17y + 60 = 0 \\ (y - 5)(y - 12) = 0 [/tex]

[tex]x = 12; y = 5 \\ x = 5; y = 12[/tex]