NA DZISIAJ PILNE!!!!!!
(3x-2)(3x-2y+1)-4x(2x-3y+1)=
(3x-2)(3x-2y+1)-4x(2x-3y+1)=9x²-6x- 6xy+4y+3x-2-8x²+12x-4x=
x²-7x+4y+6xy-2
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(3x-2)(3x-2y+1)-4x(2x-3y+1)=9x²-6x- 6xy+4y+3x-2-8x²+12x-4x=
x²-7x+4y+6xy-2