Question

(х-3)^2=4(х-3) решите уравнение

Answer 1

(х-3)^2=4(х-3)

x^2-6x+9=4x-12

x^2-6x+9=4x+12=0

x^2-10x+21=0

x^2-3x-7x+21=0

x(x-3)-7(x-3)=0

(x-3)*(x-7)=0

x-3=0

x-7=0

x=3

x=7