2x 2 3y 2 11 July 8, 2019 16 32 64 128 2x 2 y 2 3xy 3x 3y 11 0 (- 5x 3y 2 )(- 2x 11y 2 X 2 3y 2 2xy 2x 14y 11 0 X 2 3y 2 2xy 2x 14y 11 2x 2 3xy y 2 5x 3y 11 2x 2 5xy 3y 2 x 11y 6 因数 分解 2x + 3y