Use binomial the porem to expand (x+y)25

2 answers

Did you mean (x+y)^25 ?

Do you really expect me to write out all 26 terms ?

What is "the porem" ?
That's "theorem" with an uncorrected typo.

Type in (x+y)^25 at wolframalpha.com to see the whole grisly expansion.

If I were a teacher, I'd accept

25
Σ 25Ck x^(25-k) y^k
k=0

since it would indicate that you know about binomial coefficients and their use in the the the porem. :-)
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