2x 5y 8 0 July 8, 2019 16 32 64 128 2x 5y 8 2x 3y 0 3x 2y 7 2x 5y 8 0 2x 5y 8 và 2x 3y 0 2x 3y =- 1 3x 5y 8 0 2x 5y 4 0 2x y 8 0 2x 5y 8 0 x 4y 7 0 2x 3y 4 0 3x 5y 8 0 2x − 1 dx 5y 8 dy 0 2x 5y 8 0 3x 2y 1 0 2x 5
