(3-2x)(6x-1)=(2x-3)^2
(3-2x)(6x-1)=(2x-3)² 18x-12x²-3+2x=4x²-12x+9 4x²+12x²-12x-20x+9+3=0 16x²-32x+12=0 |:4 4x²-8x+3=0 D=(-8)²-4*4*3=64-48=16=4² x(1)=(8+4)/2*4=1,5 x(2)=(8-4)/2*4=0,5