Question

answer 14th question by column method ​

Answer 1

We have (x^4+1/x^4)(x+1/x)

Take lcm

[(X^8+1)/x^4] [(x^2+1)/x]

Multiply the terms

[(x^8+1)(x^2+1)/x^4*x)]

X^10+x^8+x^2+1/x^5 the answer