Докажите тождества 2) (m^2-n^2)(m^2+n^2)-m^2(m^2-n^2)-m^2n^2=-n^4. Created by Надир2004. algebra-ru

Докажите тождества 2) (m^2-n^2)(m^2+n^2)-m^2(m^2-n^2)-m^2n^2=-n^4...

Надир2004 @Надир2004

July 2022 1 2 Report

Докажите тождества
2) (m^2-n^2)(m^2+n^2)-m^2(m^2-n^2)-m^2n^2=-n^4

Answers & Comments

svetlanasch $( m^{2} - n^{2} )(m^{2} + n^{2})- m^{2} (m^{2} - n^{2})- m^{2} n^{2} =- n^{4} \\ (m^{4} - n^{4})-m^{4} + m^{2} n^{2}-m^{2} n^{2} =- n^{4} \\ m^{4} - n^{4}-m^{4}=- n^{4} \\ - n^{4}=- n^{4}$

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