谢题,我高中毕业59年了,现在有时间做题.

15x^5+17x^4+x^3-x^2=0,x=0为2重根, x=-1为根,有x^2(x+1)(15x^2+2x-1)=0,x^2(x+1)(5x-1)(3x+1)=0,x=-1,-1/3,0,0,1/5.

15x^5-22x^4+6x^2+x=0,...,x(x-1)^2(3x+1)(5x+1)=0,有x=0,1,1,-1/3,-1/5.