Respuesta :

[tex]\bf m^5-m^7\implies \begin{array}{llll} m^5&(1-m^2)\\\\ &(1^2-m^2)\\\\ &(1-m)(1+m) \end{array} \\\\[-0.35em] ~\dotfill\\\\ ~\hfill m^5(1-m)(1+m)~\hfill[/tex]

recall that

1² = 1

1⁴ = 1

1⁸⁹⁹⁹⁹⁹⁹⁹⁹ = 1

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