Question
Determine the term independent of x in the expansion of (3/x^2+2x)^6
Answers
oobleck
The powers of x go up by 3's: -12, -9, -6, -3, 0
The 5th term is
6C4 (3/x^2)^2 (2x)^4
The 5th term is
6C4 (3/x^2)^2 (2x)^4