Question

[Ngothitolan]

Tìm x , y thuộc Z

(2x + 1) (3y - 2) = -55 

Answer 1

[trang chelsea]

kho....................wa..................troi.......................thi.....................ret.................lanh................wa..................tich............................ung.........................ho..............minh......................cho....................do....................lanh

Answer 2

[trang chelsea]

kho....................wa..................troi.......................thi.....................ret.................lanh................wa..................tich............................ung.........................ho..............minh......................cho....................do....................lanh