2X^2+3x-1=0的二个根是x1,x2
x1+x2=-3/2
x1x2=-1/2
设另一方程的二个根分别是M=x1^2.N=x2^2
M+N=x1^2+x2^2=(x1+x2)^2-2x1x2=9/4+1=13/4
MN=(x1x2)^2=1/4
即方程是x^2-13/4x+1/4=0
即:4x^2-13x+1=0
选择C
2X^2+3x-1=0的二个根是x1,x2
x1+x2=-3/2
x1x2=-1/2
设另一方程的二个根分别是M=x1^2.N=x2^2
M+N=x1^2+x2^2=(x1+x2)^2-2x1x2=9/4+1=13/4
MN=(x1x2)^2=1/4
即方程是x^2-13/4x+1/4=0
即:4x^2-13x+1=0
选择C