Homework help over math!

There are 5 solutions for X. Solve them all.
(x²-5x+5)^(x²-9x+20)=1

THANKS!

Solutions of equations
x² - 9x + 20 = 0
x² - 5x + 5 = 1
x² - 5x + 5 = -1
are 1, 2, 3, 4 and 5.

All of them are also solutions of
(x² - 5x + 5)^(x² - 9x + 20) = 1

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