I'm not sure how to do this:
show that $(x + 12y)^{13}\equiv x^{13} - y^{13} {\mod 13}$ for all integers
It's part of a question on the binomial theorem, but that's all I've got.
I'm not sure how to do this:
show that $(x + 12y)^{13}\equiv x^{13} - y^{13} {\mod 13}$ for all integers
It's part of a question on the binomial theorem, but that's all I've got.