Question

Find the product (x^4+1/x^4)(x+1/x)

Answer 1

(x^4+1/x^4)(x+1/x)
a^m*a^n=a^m+n
so
[(x^4+1) (x+1)/(x^4+1)]
x^4+1 +1/x^4+1
● x^5 +1/x^5