a) (2x - 1)^2 = (2x - 1)(2x - 1) = 4x^2 - 2x - 2x + 1 = 4x^2 - 4x + 1
б) (4z - 3)^2 = (4z - 3)(4z - 3) = 16z^2 - 12z - 12z + 9 = 16z^2 - 24z + 9
в) (4 - 2b)^2 = (4 - 2b)(4 - 2b) = 16 - 8b - 8b + 4b^2 = 16 - 16b + 4b^2
г) (1 - 2k)^2 = (1 - 2k)(1 - 2k) = 1 - 2k - 2k + 4k^2 = 1 - 4k + 4k^2
a) (2x - 1)^2 = (2x - 1)(2x - 1) = 4x^2 - 2x - 2x + 1 = 4x^2 - 4x + 1
б) (4z - 3)^2 = (4z - 3)(4z - 3) = 16z^2 - 12z - 12z + 9 = 16z^2 - 24z + 9
в) (4 - 2b)^2 = (4 - 2b)(4 - 2b) = 16 - 8b - 8b + 4b^2 = 16 - 16b + 4b^2
г) (1 - 2k)^2 = (1 - 2k)(1 - 2k) = 1 - 2k - 2k + 4k^2 = 1 - 4k + 4k^2