Answer:
[tex]x= 0\\x =4[/tex]
Step-by-step explanation:
We have the expression:
[tex]x ^ 2-4x = 0[/tex]
To solve this equation we must factor:
1.- Take common factor x.
[tex]x(x-4) = 0[/tex]
2.- Evaluate the expressions to know when they are equal to 0.
[tex]x = 0[/tex] or [tex]x-4 = 0[/tex]
[tex]x = 0[/tex] or [tex]x = 4[/tex]
3.- The solutions are:
[tex]x = 0\\x = 4[/tex]