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

Toán Lớp 9: 5( √x-5)-2(3 √x-4) Mn giup em voi a can loi giai chi tiet

Toán Lớp 9: 5( √x-5)-2(3 √x-4)
Mn giup em voi a can loi giai chi tiet

Comments ( 2 )

  1. Hướng dẫn trả lời:
    5cdot(sqrtx – 5) – 2cdot(3sqrtx – 4)
    = 5cdot sqrtx – 5cdot5 – 2cdot3sqrtx + 2cdot4
    = 5sqrtx – 25 – 6sqrtx + 8
    = (5sqrtx – 6sqrtx) + (- 25 + 8)
    = -sqrtx – 17

  2. Xin gửi cho bạn chủ tus ạ

     Cho mình xin câu trả lời hay nhất nha 

     

     

    toan-lop-9-5-5-2-3-4-mn-giup-em-voi-a-can-loi-giai-chi-tiet

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

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