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

Toán Lớp 6: Tính hộ mình với: -1^2×6(5-12a)

Toán Lớp 6: Tính hộ mình với:
-1^2×6(5-12a)

Comments ( 2 )

  1. -1^2×6(5-12a)
    =-1×(30-72a)
    =-(30-72a)
    =72a-30

  2. -1^2 x 6.(5-12a)
    =-1 x (30-72a)
    =-30+72a

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

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