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

Toán Lớp 6: 6 mũ 20 . 6 mũ 4x = 6 mũ 200 x = bao nhêiu

Toán Lớp 6: 6 mũ 20 . 6 mũ 4x = 6 mũ 200 x = bao nhêiu

Comments ( 2 )

  1. 6^20 . 6^(4x) = 6^200
    => 6^(20 + 4x) = 6^200
    => 20 + 4x = 200
    => 4x= 200-20
    => 4x = 180
    => x= 180:4
    => x= 45
    Vậy x= 45

  2. Giải đáp:
    6^20 . 6^(4x)=6^200
    <=> 6^(20+4x)=6^200
    <=> 20+4x=200
    <=> 4x=200-20
    <=> 4x=180
    <=> x=180:4
    <=> x=45
    Vậy x=45

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