Question

RESOLVA COM A REGRA DE PRODUTO NOTAVEL (A4+M4)(A4-M4) OBS: O 4 QUER DIZER QUE É ELEVADO ...

Answer 1

${ \it Produto~~da ~~Soma~~Pela~~Diferen{\c c}a:}\\\\\\ Ex:~~(a+b)(a-b)\to~~a^2-ab+ab-b^2 \to~~\boxed{a^2-b^2}\\\\\\\\(a^4+m^4)(a^4-m^4)\to\\\\ (a^4\times a^4)+(a^4\times(-m^4))+(m^4\times a^4)+(m^4\times (-m^4))\to\\\\ a^8-a^4m^4+a^4m^4-m^8\to\\\\ \large\boxed{\boxed{a^8-m^8}}$