Question

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

Answer 1

`x=0` or 4

Explanation:

If we take `x` out as a common factor, we get:

`x(x-4)=0`

Using the null factor law we can now solve for `x`(essentially determining the values required to make each value of `x=0`):

`x=0`
or `x=4`.