Odpowiedź :
Odpowiedź:
[tex]2x(x-7)=x(x-5)\\\\2x^2-14x=x^2-5x\\\\2x^2-14x-x^2+5x=0\\\\x^2-9x=0\\\\x(x-9)=0\\\\x=0\ \ \ \ \vee\ \ \ \ x-9=0\\\\x=0\ \ \ \ \vee\ \ \ \ x=9[/tex]
[tex]2x(x-7)=x(x-5)\\2x^2-14x=x^2-5x\\x^2-9x=0\\x(x-9)=0\\x=0 \vee x=9[/tex]