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

Toán Lớp 9: Thu gọn biểu thức: 3+√18 -√3+2√2 =?

Toán Lớp 9: Thu gọn biểu thức:
3+√18 -√3+2√2 =?

Comments ( 2 )

  1. 3 + $\sqrt{18}$ – $\sqrt{3}$ + 2$\sqrt{2}$
    = 3 + 3$\sqrt{2}$ – $\sqrt{3}$ + 2$\sqrt{2}$ 
    = 3 + 5$\sqrt{2}$ – $\sqrt{3}$

  2. Answer
    3 + \sqrt{18} – \sqrt{3} + 2\sqrt{2}
    = 3 + 3\sqrt{2} – \sqrt{3} + 2\sqrt{2}
    = 3 + 3\sqrt{2} + 2\sqrt{2} – \sqrt{3}
    = 3 + 5\sqrt{2} – \sqrt{3}

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