(3m-2n) (2m-3n)+(3n-m)(2n-m)

Question

(3m-2n) (2m-3n)+(3n-m)(2n-m)

Answer 1

6m^2-4mn-9mn+6n^2+6n^2-2mn-3mm+m^2=7m^2+12n^2-18mn

Comments

^2-вторая степень