Решите уравнение: (х-11)^2-х(х-11)=0

Question

Решите уравнение:
(х-11)^2-х(х-11)=0

Answer 1

Х^2-22x+121-x^2+11x=0
-11x=-121
x=11

Answer 2

(x-11)^2-x*(x-11) = 0
121 + x^2 - 22*x - x*(x - 11) = 0
121 + x^2 - 22*x - x^2 + 11*x = 0
121 - 11*x = 0
-11*x = -121
x = -121 / (-11)
x = 11