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

Toán Lớp 8: Tìm X : x(x-50)-x+50=0 Spam húp điểm tối gặp ma

Toán Lớp 8: Tìm X : x(x-50)-x+50=0
Spam húp điểm tối gặp ma

Comments ( 2 )

  1.  x(x-50)-x+50=0
    ⇒ x(x-50)-(x-50)=0
    (x-1).(x-50)=0
    ⇒ x-1=0 ⇔ x=1
    ⇒ x-50=0 ⇔ x= 50
     Chúc Học Tốt

  2. x(x-50) – x + 50 = 0
    x(x-50).(x-50) = 0
    (x – 50).(x-1) = 0
    *x – 50 = 0 => x = 0 + 50 => x = 50
    *x-1 = 0 => x = 0+1 => x = 1
    Vậy: x = 50 hoặc x = 1
          

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