Question

add: 1 ( - m) , (m - n) and n ( n-1)​

Answer 1

Answer:

▶Here's your answer

⏩(-m) +(m-n) + n^2 -n

$- m + m - n + {n}^{2} - n \\ \\ = {n}^{2} - 2n$

⏩The answer is n^2-2n

Hope it helps ✌

Answer 2

Answer:

Hey mate plzz refer to the attachment