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

Toán Lớp 7: Tính: (2/3-5/4)^4 giúp mik nhé

Toán Lớp 7: Tính: (2/3-5/4)^4 giúp mik nhé

Comments ( 2 )

  1. $\\$
    (2/3 -5/4)^4
    =(8/12 – 15/12)^4
    =( (-7)/12)^4
    = 2401/20736

  2. $(\frac{2}{3}-\frac{5}{4})^{4}$
    = $(\frac{8}{12}-\frac{15}{12})^{4}$
    =$(\frac{-7}{12})^{2}$ 
    = $\frac{2401}{20736}$ 
     

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