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

Toán Lớp 8: 18x^7y^2 z : 6 x^2 y^2 giúp mik vs mn ơi

Toán Lớp 8: 18x^7y^2 z : 6 x^2 y^2 giúp mik vs mn ơi

Comments ( 2 )

  1. Giải đáp:
    18x^7y^2 z : 6 x^2 y^2
    = ( 18 :6).(x^7 : x^2).(y^2 : y^2).z
    = 3x^5 z

  2. 18x^7y^2z:6x^2y^2
    =(18:6).(x^7:x^2).(y^2:y^2).z
    =3x^5z

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