SOLUTION: is (x-1) a factor of x^79-1?

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Question 1159097: is (x-1) a factor of x^79-1?
Answer by mananth(16946) About Me  (Show Source):
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is (x-1) a factor of x^79-1?
f(x)= x^79 -1
If f(1) = 0 then (x-1) is a factor
f(1) =( 1)^79 -1=0
(x-1) a factor of x^79-1