(2x+y)(3x-y) tolong jawab ya soalnya di kumpulin!!!

(2x + y) (3x - y) = 6x² - 2xy + 3xy - y²
                         = 6x² + xy - y²

(3x-y)(2x-y)
3x(2x-y)-y(2x-y)
6x²-3xy-2xy+y²
6x²-5xy+y²