Question

x=5 -root 21/2 prove that (x^3+1/x^3)-5(x^2+1/x^2)+(x+1/x)=0

Answer 1

Step-by-step explanation:

x=5 -root 21/2 prove that (x^3+1/x^3)-5(x^2+1/x^2)+(x+1/x)=0