Question 1096954
Solve for x: (x^2-7x+7)^(x^2-9x+20)=1
<pre>Except 0, any EXPRESSION/VALUE that's raised to the 0 power = 1
{{{matrix(1,3, (x^2 - 7x + 7)^(x^2 - 9x + 20) = 1, "becomes:", (x^2 -7x + 7)^0 = 1)}}}
Therefore, {{{x^2 - 9x + 20 = 0}}}
(x - 5)(x - 4) = 0 =====> {{{highlight_green(system(matrix(1,3, x, "=", 5), or, matrix(1,3, x, "=", 4)))}}}