The Expansion [x2+(x6−1)1/2]5+[x2−(x6−1)1/2]5 is a polynomial of degree.
8
10
13
14
(x2+(x6−1)1/2)5+(x2−(x6−1)1/2)5=2(5C0(x2)5+5C2(x2)3(x6−1)+5C4X2(x6−1)2)
Here last term is of 14 degree.