Question

Find the constant term.\[\left(x^{2}-\frac{2}{x}\right) ^{5} \left(2+\frac{1}{x}\right) ^{4}\]

Answer 1

Writing the general term of each factor's binomial expansion, multiplying them and equating the power of x to be zero would do.

Answer 2

Yeah, that's a better way. I forgot to use the general term and had to evaluate their powers. :/