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

Toán Lớp 8: 3x+1/3+1-2x/2 1/3x-2+-4/3x+2+12x-8/9×2-4 4x/x+1+x^2-2x/x-1+1/x+1 cộng trừ phân thức nha

Toán Lớp 8: 3x+1/3+1-2x/2
1/3x-2+-4/3x+2+12x-8/9×2-4
4x/x+1+x^2-2x/x-1+1/x+1
cộng trừ phân thức nha

Comments ( 2 )

  1. 1 ) 3x+1/3+1-2x/2
     3 x + 1/3 + 1 – x
    2 x + 4/3
    2 ) 1/3x-2+-4/3x+2+12x-8/9×2-4
    1/3 x – 4/3 x + 12 x – 16/9 – 4
    11 x – 52/9
    3 ) 4x/x+1+x^2-2x/x-1+1/x+1
    4 + 1 + x^2 – 2 x 1 – 1 + 1/x + 1
    4 + 1 + x^2 – 2 – 1 + 1/x + 1
    3 + x^2 + 1/x
    3x + x^3 + 1 
    —————-
             x
    x^3 + 3 x + 1 
    —————-
             x

  2. ở 2 câu kia mình làm cho bạn rồi còn câu cuối nhee
    4x/x + 1+ x^2 – 2x/x – 1+1/x + 1
    = 4x/x + x^2 – 2x/x + 1/x +1
    = 4 + x^2 -2 + 1/x + 1
    = 3 + x^2 + 1/x
    = $\frac{3x + x^3 + 1}{x}$
    = $\frac{x^3 + 3x + 1}{x }$
    #Nhi

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

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