①a=1时,A={x|(a-1)x^2+3x-2=0}={x|3x-2=0}={x|x=2/3},满足要求!
2个子集分别为:空集,{x|x=2/3};
②a≠1时,令△=9+8(a-1)=0,→a=-1/8,此时,
A={x|(a-1)x^2+3x-2=0}={x|-9/8*x^2+3x-2=0}={x|x=4/3},满足要求!
2个子集分别为:空集,{x|x=4/3};
①a=1时,A={x|(a-1)x^2+3x-2=0}={x|3x-2=0}={x|x=2/3},满足要求!
2个子集分别为:空集,{x|x=2/3};
②a≠1时,令△=9+8(a-1)=0,→a=-1/8,此时,
A={x|(a-1)x^2+3x-2=0}={x|-9/8*x^2+3x-2=0}={x|x=4/3},满足要求!
2个子集分别为:空集,{x|x=4/3};