(2x+3)(12y+4)= 2x*12y+2x*4+3*12y+3*4=24xy+8x+36y+12=24xy+8x+3*12y+3*4=24xy+8x+36y+12
(2х + 3)(12у + 4) = 2х * 12у + 4 * 2х + 3 * 12у + 3 * 4 = 24ху + 8х + 36у + 12
(2x+3)(12y+4)= 2x*12y+2x*4+3*12y+3*4=24xy+8x+36y+12=24xy+8x+3*12y+3*4=24xy+8x+36y+12
(2х + 3)(12у + 4) = 2х * 12у + 4 * 2х + 3 * 12у + 3 * 4 = 24ху + 8х + 36у + 12