Question

Find the term x^2 in:
(2+x)^4 (1+1/x^2)

Answer 1

\[(2+x)^4 (1+1/x^2) \]

Answer 2

so its 25 :D

Answer 3

Waiit its \[24x^2 (1+1/x^2)\] correct?

Answer 4

By doing it the hard way:
\[25x ^{2}\]

Answer 5

open the first one using Binomial theorem

then multiply it by (1+1/x^2 )

separate the terms which include x^2

Answer 6

I dont understand how you got 24x^2 + x^2. Isnt it 24x^2 + 24?