y`=((2x-6)(3x+2)-3(x²-6x+4))/(3x+2)²=(6x²+4x-18x-12-3x²+18x-12)/(3x+2)²==(3x²+4x-24)/(3x+2)²=03x²+4x-24=0D=16+288=304 √D=4√19x1=(-4-4√19)6=(-2-2√19)/3x2=(-4+4√19)/6=(-2+2√19)/3 + _ +____________________________________________ (-2-2√19)/3 (-2+2√19)/3 max min