Question

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

Answer 1

I found:
`x_1=0`
`x_2=2`

Explanation:

Try collecting `x` to get:
`x(x-2)=0`
this is true either if `x=0` or `x-2=0`;
so you get two solutions:
`x_1=0`
`x_2=2`

Alternately you can use the Quadratic Formula but it is boring!