SOLUTION: find the term independent of x in the expansion (2x-(1/x^2))^6

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Question 422031: find the term independent of x in the expansion (2x-(1/x^2))^6
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
find the term independent of x in the expansion (2x-(1/x^2))^6
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(6C6)(2x)^6(1/x^2)^0
+ (6C5)(2x)^5(1/x^2)
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+ (6C4)(2x)^4(1/x^2)^2 = 15*(2x)^4(1/x^2)^2 = 15*16 = 240
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That term is independent of "x".
Cheers,
Stan H.