How do you solve $x^2 - 4x = 0$ by factoring?

Question

52482 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2015-08-12T06:31:57

The solutions are:
$color(blue)(x=0,x=4$

$x^2-4x=0$

Here $color(blue)(x$ is common to both the terms of the expression

$color(blue)(x)(x-4)=0$

Now we equate each of the two factors to zero, to obtain the solutions.

$color(blue)(x=0$
$x-4=0, color(blue)(x=4$

How do you solve x^2 - 4x = 0 x^2 - 4x = 0 by factoring?