Question

Expand
${(2m - n )}^{2}$
​

Answer 1

Answer:

4m^2 + n^2 - 4mn

Step-by-step explanation:

(2m-n)^2

= (2m)^2+n^2-4mn

or, 4m^2 + n^2 - 4mn answer.

I hope it is useful for you.