Question

Simplify the following algebraic expression: (only for brilliant)

1. (2m + 1) (m-2) - (3n - 1) (n+3) - [4 (m - 2n) + {1 - n² + 2 (m+n) (m-n)}]

please give only correct answer. I will mark u as branliest.​

spammers stay away!!!!​​

Answer 1

Step-by-step explanation:

hey sorry I don't know the answer