1) (4x-3)²-3x*(5x-2) 2) (3x-4y)*(3x+4y)+(6x+2y)*(6x-2y) 3) (4x-2)*(4x+2) -2x*(8x+4)=-12

1) 16x^2 - 24x + 9 - 15x^2 + 6x = x^2 - 18x + 9
2) 9x^2 - 16y^2 + 36x^2 - 4y^2 = 45x^2 - 20y^2
3) 16x^2 - 4 - 16x^2 - 8x + 12 = 0
- 8x = - 8
8x = 8
x = 1