(m^4-n^4)(m^4+n^4)-m^6 (m^2-n^2)-m^6n^6

Question

(m^4-n^4)(m^4+n^4)-m^6 (m^2-n^2)-m^6n^6

Answer 1

M^8-n^8-m^8+m^6n²-m^6n^6=m^6n²-m^6n^6-n^8

Comments

спасибо большое