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

Toán Lớp 8: Tìm x biết 2022x(x-2021)-x+2021=0 MN GIÚP MIK GẤP AK

Toán Lớp 8: Tìm x biết
2022x(x-2021)-x+2021=0
MN GIÚP MIK GẤP AK

Comments ( 2 )

  1. 2022x(x-2021)-x+2021=0
    2022x(x-2021) – (x-2021)=0
    (2022x-1)(x-2021)=0
    ⇒\(\left[ \begin{array}{l}2022x-1=0\\x-2021=0\end{array} \right.\) 
    ⇒\(\left[ \begin{array}{l}2022x=1\\x=2021\end{array} \right.\) 
    ⇒\(\left[ \begin{array}{l}x=\frac{1}{2022}\\x=2021\end{array} \right.\) 
             Vậy x=1/2022 hoặc x=2021
    #wcdi

  2. @Bao
    2022x(x-2021)-(x-2021)=0
    ->(x-2021)(2022x-1)=0
    -> x-2021=0 hoặc 2022x-1=0
    ->x=2021 hoặc 2022x=1
    -> x=2021 hoặc x=1/2022
     

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

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