this week in math 10 i learned how to make a trinomial that has the “pattern” ( $x^2$ , x, #) look “nicer” if it was written out in a jumbled up order. ex  5x-$30x^2$+40 is written as x, $x^2$ , # rather than  $x^2$ , x, #. so we can write it as –$30x^2$ +5x+40 now, the $x^2$ is negative so when we find the greatest common factor, we can take -5 instead of +5 to make it positive, which would also switch the other terms to their opposites, so –$30x^2$ +5x+40 is now -5( $6x^2$ -x-40)