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222-9+11+12:2*14+14 = ? ( )

Toán Lớp 7: F(-1)+g(-1) giúp mik nhé các bn ơi !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Toán Lớp 7: F(-1)+g(-1)
giúp mik nhé các bn ơi !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Comments ( 2 )

  1. $Đáp$ $án$:
    =−????−????
    =−????+????(−1)
    $Giải$ $thích$ $các$ $bước$ $giải$:
    ????(−1)+????(−1)
    =−????+????(−1)
    vậy sẽ bằng: =−????−????

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222-9+11+12:2*14+14 = ? ( )

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