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

Toán Lớp 9: Tính. 1)$\frac{3}{2}\sqrt{20}$ + $2\sqrt{45}$ – $3\sqrt{80}$ – $\sqrt{125}$

Toán Lớp 9: Tính.
1)$\frac{3}{2}\sqrt{20}$ + $2\sqrt{45}$ – $3\sqrt{80}$ – $\sqrt{125}$

Comments ( 2 )

  1. 1) 3/2\sqrt{20}+2\sqrt{45}-3\sqrt{80}-\sqrt{125}
    =3\sqrt{5}+6\sqrt{5}-12\sqrt{5}-5\sqrt{5}
    =-8\sqrt{5}
     

  2. $\text{#Táo vàng}$
    3/2\sqrt{20} + 2\sqrt{45} – 3\sqrt{80} – \sqrt{125}
    = 3\sqrt{5} + 2\sqrt{45} – 3\sqrt{80} – 5\sqrt{5}
    = 9\sqrt{5} – 3\sqrt{80} – 5\sqrt{5}
    = -3\sqrt{5} – 5\sqrt{5}
    = -8\sqrt{5}
     

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