А) (3a+c)×2a = 6a^2 + 2acб) (8x-y)×3xy = 24x^2y - 3xy^2в) (2a+3)×4a = 8a^2 + 12aг) (3x-y)×2xy = 6x^2y - 2xy^2
А) (3a+c)×2a = 6a^2 + 2ac
б) (8x-y)×3xy = 24x^2y - 3xy^2
в) (2a+3)×4a = 8a^2 + 12a
г) (3x-y)×2xy = 6x^2y - 2xy^2