ОДЗ:
x²-10x+9≠0
x²-9x-x+9≠0
x*(x-9)-(x-9)≠0
(x-9)(x-1)≠0 ⇒
x₁≠9 x₂≠1.
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ОДЗ:
x²-10x+9≠0
x²-9x-x+9≠0
x*(x-9)-(x-9)≠0
(x-9)(x-1)≠0 ⇒
x₁≠9 x₂≠1.