SOLUTION: I was hoping I can get a step by step answer for this: (3x+2)^7

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Question 204826: I was hoping I can get a step by step answer for this:
(3x+2)^7
Found 2 solutions by rfer, MathTherapy:
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
take each piece in the () to the 7th power
(3x+2)^7
3x^7=2187x
2^7=128
2187x+128
That is as far as you can go without a value for x.
Depending on what your teacher is looking for, you may just want 3x^7+128

Answer by MathTherapy(10555) About Me  (Show Source):
You can put this solution on YOUR website!
In order to solve an expansion, you need to use the BINOMIAL EXPANSION FORMULA, which states:

%28a%2Bb%29%5En=%28nCo%2Aa%5E%28n-0%29%2Ab%5E0%29%2B%28nC1%2Aa%5E%28n-1%29%2Ab%5E1%29 -------> %28nCn%2Aa%5E%28n-n%29%2Ab%5En%29
%283x%2B2%29%5E7=%287Co%2A3x%5E%287-0%29%2A2%5E0%29%2B%287C1%2A3x%5E%287-1%29%2A2%5E1%29 -------> %287C7%2A3x%5E%287-7%29%2A2%5E7%29


This equals: