1)(x²-x)/6 -(x-2)/3=(3-x)/2x²-x-2x+4-9+3x=0x²-5=0x²=5x=-√5 U x=√52)x²-10x-12=0x1+x2=103)x|X|-9x-10=0a)x<0-x²-9x-10=0x²+9x+10=0D=81-40=41x1=(-9-√41)/2 U x2=(-9+√41)/2b)x≥0x²-9x-10=0x1+x2=9 U x1*x2=-10x1=-1не удов услx2=104)3x²-16x+6=0x²-16/3*x+2=0x1*x2=2