Пример: (a-b) (a+b) = a^2-b^2 (m+6)(6-m) (0,3-p)(0,3+p) (2x-1)(2x+1) (3p-k)(3p+k) (7-p)(7+p) (2c+1)(2c-1) (3t-y)(3t+1) (6x-5y)(6x+5y) (4x+3y)(4x-3y) (7p-2k)(7p+2k) (8y-3p)(8y+3p) (6x-2y)(6x+2y) (7p+9q)(7p+9q) (11x+12y)(11x-12y) (0,1x+6)(0,1x-6) (0,6p-2c) (0.6p+2c) (1.3x+3y) (1.3x-3y) (0.9-4y) (0.9+4y)