SOLUTION: Find the term in x^4 in the expansion of (3x^2-2/x)^5

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Question 1150515: Find the term in x^4 in the expansion of (3x^2-2/x)^5
Answer by Edwin McCravy(20060)   (Show Source): You can put this solution on YOUR website!
The general term of 

 

is 

 

So the general term of 

 

is 

 

Which we simplify:

 




We subtract exponents of x



Since we want the term in x4, we set the exponent of x
equal to 4

10-3k = 4
  -3k = -6
    k = 2

So we substitute 2 for k









Edwin
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