x/x²-x+1=5
(x^2-x+1)/x=1/5
x-1+1/x=1/5
所以:
x+1/x=6/5
(x^4+x^2+1)/x^2
=x^2+1+1/x^2
=x^2+1/x^2+2-1
=(x+1/x)^2-1
=(6/5)^2-1
=11/25
所以所求的式子结果=25/11.
x/x²-x+1=5
(x^2-x+1)/x=1/5
x-1+1/x=1/5
所以:
x+1/x=6/5
(x^4+x^2+1)/x^2
=x^2+1+1/x^2
=x^2+1/x^2+2-1
=(x+1/x)^2-1
=(6/5)^2-1
=11/25
所以所求的式子结果=25/11.