Hi I need help with a question as I am getting k as a non-integer when doing the binomial expansion.
Question: Find the term independent of x in the expansion of:
(\frac{2}{x^4} + x^2)^{14}
My attempt:
(\frac{2}{x^4} + x^2)^{14} = \binom{14}{k}(2x^{-4})^{14-k}(x^2)^k
=...