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

Toán Lớp 9: (√10-√5)/(√2-1)-(3√5+5)/(√5+3)+2/(√2)

Toán Lớp 9: (√10-√5)/(√2-1)-(3√5+5)/(√5+3)+2/(√2)

Comments ( 1 )

  1. Giải đáp+Lời giải và giải thích chi tiết:
    (\sqrt{10}-\sqrt{5})/(\sqrt{2}-1)-(3\sqrt{5}+5)/(\sqrt{5}+3)+2/(\sqrt{2})
    = (\sqrt{5}(\sqrt{2}-1))/(\sqrt{2}-1)-(\sqrt{5}(\sqrt{5}+3))/(\sqrt{5}+3)+\sqrt{2}
    = \sqrt{5}-\sqrt{5}+\sqrt{2}
    = \sqrt{2}

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