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

Toán Lớp 8: x^2 – 4x +3 tìm x( giúp mình vs)

Toán Lớp 8: x^2 – 4x +3
tìm x( giúp mình vs)

Comments ( 2 )

  1. Giải đáp:
    x² – 4x + 3 
    = x² – x – 3x + 3
    = ( x² – x ) – ( 3x – 3 )
    = x( x – 1 ) – 3( x – 1 )
    = ( x – 1 )( x – 3 )
    Chúc bạn học tốt!
     

  2. x² – 4x + 3 
    = x² – x – 3x + 3
    = ( x² – x ) – ( 3x – 3 )
    = x( x – 1 ) – 3( x – 1 )
    = ( x – 1 )( x – 3 )
     

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