Alguém sabe (x-7)(x+7) por favor

Alguém sabe (x-7)(x+7) por favor



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    Olha basta voc fazer a distributiva que fica:
    (x-7)(x+7)=
    x+7x-7x-49=
    x-49
    Espero ter ajudado
    Bons estudos
  • Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
    (x — 7 ) ( x + 7)
    x — 7x + 7x — 49
    x — 49 produto notvel

    Resoluo da equao do 2 gru

    x — 49 = 0
    x = 49
    x = + -49
    x = + — 7

    x = + 7 e x» = — 7


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19 + = 21