Find m and n given that x^2-20x+m=(x-n)^2please show each step neatly as i've just learnt this topic and don't really understand it.

1 Answer | Add Yours

nathanshields's profile pic

Posted on

Expand the right side:

`x^2-2nx+n^2`

So -2n = -20.  This means that n = 10 and m = `n^2` =100.

We’ve answered 333,385 questions. We can answer yours, too.

Ask a question