Question

Упростите: 3(m-1)^ 2+(m-2)(m^2-2m+4)-(m+1)^ 3=

Answer 1

=3m^2-6m+3 +m^3-2m^2+4m-2m^2+4m^2-8 -m^3-3m^2-3m-1=-6m+4m-3m+3-8-1=-5-6