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

Toán Lớp 8: TÌm x nha mn ! i câu thui x(x-2020)-x+2020=0

Toán Lớp 8: TÌm x nha mn ! i câu thui
x(x-2020)-x+2020=0

Comments ( 2 )

  1. #huy
    x(x-2020)-x+2020=0
    <=>x(x-2020)-(x-2020)=0
    <=>(x-2020)(x-1)=0
    <=>[(x-2020=0),(x-1=0):}
    <=>[(x=2020),(x=1):}
    Vậy x=2020 hoặc x=1

  2. Giải đáp+Lời giải và giải thích chi tiết:
    x(x-2020)-x+2020=0
    ⇔x(x-2020)-(x-2020)=0
    ⇔(x-2020)(x-1)=0
    $⇔\left[\begin{matrix} x-2020=0\\ x-1=0\end{matrix}\right.$
    $⇔\left[\begin{matrix} x=2020\\ x=1\end{matrix}\right.$
         Vậy x=2020; 1
    $\text{#LinhSad}$

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

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