k^2x^2-2(k+1)x+1=0x1+x2=-b/a=[2(k+1)]/k^2=4x1*x2=1/k^2=1 x2/x1+x1/x2=(x1^2+x2^2)/(x1*x2)=[(x1+x2)^2-2x1*x2]/(x1*x2)=(16-2)/1=14/1=14
