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

Toán Lớp 7: 2x^2-6 tìm nghiệm

Toán Lớp 7: 2x^2-6
tìm nghiệm

Comments ( 2 )

  1. $\text{Ta có:}$
    2x^2-6=0
    $\Rightarrow$ 2x^2 = 6
    $\Rightarrow$ x^2 = 3
    $\Rightarrow$ x= $\pm$ $\sqrt{3}$
    $\text{Vậy x = }$ $\pm$ $\sqrt{3}$
     

  2. text{ta có}
    2x^2-6=0
    =>2x^2 = 6
    =>x^2 = 3
    =>x = +-sqrt(3)
    text{Vậy}  x=+-sqrt(3)
    ~~~~~~~~GOOD LUCK~~~~~~~~

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