1) (4x-3)^2 = 16x^2 - 24x + 92) (5m-4n)^2 = 25m^2 - 40mn + 16n^23) (10c+7d)^2 = 100c^2 + 140cd + 49d^24) (4x-1/8y)^2 = 16x^2 - 1/2xy + 1/64y^25) (0.3a+0.9b)^2 = 0.09a^2 + 0.54ab + 0.81b^2
1) (4x-3)^2 = 16x^2 - 24x + 9
2) (5m-4n)^2 = 25m^2 - 40mn + 16n^2
3) (10c+7d)^2 = 100c^2 + 140cd + 49d^2
4) (4x-1/8y)^2 = 16x^2 - 1/2xy + 1/64y^2
5) (0.3a+0.9b)^2 = 0.09a^2 + 0.54ab + 0.81b^2