Wie rechnen Sie mit `x ^ 2-5x`?

The first consideration is to check if there is a `color(blue)"common factor"`

`x^2=color(red)(x)xx x" and " 5x=5xxcolor(red)(x)`

`"Hence there is a common factor of " color(red)(x)` which can be taken out of each term.

`rArrcolor(red)(x)(x-5)" is the factored form"`

`color(blue)"Check"` by multiplying out.

`rArrx(x-5)=(x xx x)-(5xx x)=x^2-5x`