−7n+2−7n+2 from 2n−12n−1 .
-10n - 1 - (-14n+ 4)-10n - 1 + 14n - 44n - 5
(2n-12n-1)-(7n+2-7n+2)(-10n-1)-(-7n-7n+2+2)(-10n-1)-(-14n+4)-10n-1+14n-414n-10n-1-44n-5Hope this helps :)