Question

(x+1/x)(x^2-1+1/x^2) expansion​

Answer 1

Answer:

Step-by-step explanation:

(x+1/x)(x^2-1+1/x^2)

=x*x^2-x+(x/x^2)+(x^2/x)-(1/x)+(1/x^2.x)

=x^3-x+1/x+x-1/x+1/x^3

=x^3+(1/x^3)