how would you expand (a^x+b)^y? sorry if this is in wrong place but i wasnt sure where to put it. thanks for any help.
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Originally Posted by hmmmm how would you expand (a^x+b)^y? sorry if this is in wrong place but i wasnt sure where to put it. thanks for any help. look up binomial expansion $\displaystyle (x + y)^n = \sum_{k = 0}^{n} {n \choose k}x^{n - k}y^k$
thanks very much but what happens if the x has a power that isnt 1?
Originally Posted by hmmmm thanks very much but what happens if the x has a power that isnt 1? say we write x as $\displaystyle a^x$ in the above formula: $\displaystyle (a^x + y)^n = \sum_{k = 0}^{n} {n \choose k}(a^x)^{n - k}y^k$
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