Question

Решите уравнение (2x-9)^2(x-9)=(2x-9)(x-9)^2

Answer 1

 (2x-9)^2(x-9)=(2x-9)(x-9)^2 
(2x-9)^2(x-9)-(2x-9)(x-9)^2=0
(2x-9)(x-9)(2x-9-x+9)=0
2(x-4.5)(x-9)*x=0
x₁=4.5
x₂=0
x₃=0