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OK. Like this: No 'a's appear in the question you had so put a = 1 and all the a powers are just 1. Put b = 6. And that's it because the LHS is 7^n and the RHS is what you were asked to simplify. Bob
Wth... You know this is a trick question, expanding and what not... wth  like a couple hours on that complete nonsense!!!
Yes,
Hi PeterG
so how does it get to I must be missing a step:
hi PeterG The question needs the binomial formula: http://www.mathsisfun.com/algebra/binomialtheorem.html Using that formula try putting a = 1, b = 6 Notation: Bob
How do you solve #3??? I cannot find that anywhere... I am sure it is simple, but I cant get it! that is supposed to be +...+6^(n1)  looks like the math script is a bit broken This is not homework  it is a problem on a previous test.. I can't figure it out. I am guessing Jhua4 is from UCI as well, Dillenc0urt? THANK YOU!
Hi; which is confirmed by direct computation. 4) Is correct. Just a standard Mississippi problem. 5) Please state what you mean by the LaPlace's probability model.
5a) 3/7
3) 4^n
Hi;
2) 2^40 (50,10)
I worked through them all but am not sure if they're correct.
Hi Jhua4;
1) suppose you have 70 books (35 novels, 20 history books and 15 math books). Assume that all 70 books are different 