Question

(m-n)(n^3-p^3)-(n-p)(m^3-n^3) за решение 10 балов

Answer 1

$(m-n)(n^3-p^3)-(n-p)(m^3-n^3)=mn^3-mp^3-n^4+np^3 -(m^3n-n^4-m^3p+n^3p)=mn^3-mp^3-n^4+np^3 -m^3n+n^4+m^3p-n^3p=mn^3-mp^3+np^3 -m^3n+m^3p-n^3p$