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

Toán Lớp 9: √11-6√2+√3-2√2 √15-6√6+√35-12√6 √17-3√32+√17+3√32 √49-5√96+√49+5√96 √13-√160+√53+4√90 mn giúp mik với mik cần gấp lắm

Toán Lớp 9: √11-6√2+√3-2√2
√15-6√6+√35-12√6
√17-3√32+√17+3√32
√49-5√96+√49+5√96
√13-√160+√53+4√90
mn giúp mik với mik cần gấp lắm

Comments ( 1 )

  1. a) √11-6√2+√3-2√2
    =√11+√3-8√2
    b)√15-6√6+√35-12√6
    =√15+√35-18√6
    c) √17-3√32+√17+3√32
    =√17-12√2+√17+12√2
    =2√17
    d)√49-5√96+√49+5√96
    =7-20√6+7+20√6
    =14
    e)√13-√160+√53+4√90
    =√13-4√10+√53+12√√10
    =√13+8√10+√53
     

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

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