Sign Up

Have an account? Sign In Now

Sign In

Forgot Password?

Don't have account, Sign Up Here

Forgot Password

Lost your password? Please enter your email address. You will receive a link and will create a new password via email.

Have an account? Sign In Now

You must login to ask question.

Forgot Password?

Need An Account, Sign Up Here
Sign InSign Up

DocumenTV

DocumenTV

DocumenTV Navigation

  • Home
  • Movie
  • Music Entertainment
  • Vietnamese
Search
Ask A Question

Mobile menu

Close
Ask a Question
  • Home
  • Movie
  • Music Entertainment
  • Vietnamese
Home/Questions/Q 7405
Next
In Process
Mít Mít
Mít Mít

Mít Mít

  • 854 Questions
  • 2k Answers
  • 0 Best Answers
  • 16 Points
View Profile
  • 0
Mít Mít
Asked: Tháng Mười 27, 20202020-10-27T06:33:16+00:00 2020-10-27T06:33:16+00:00In: Môn Toán

giup minh voi cam on moi nguoi nhieu

  • 0

giup minh voi
cam on moi nguoi nhieu

giup-minh-voi-cam-on-moi-nguoi-nhieu

  • 2 2 Answers
  • 23 Views
  • 0 Followers
  • 0
Answer
Share
  • Facebook

    Related Questions

    • Một hình thang có đáy lớn là 52cm ; đáy bé kém đáy lớn 16cm ; chiều cao kém đáy ...
    • Useful news and important articles
    • APROTININ FROM BOVINE LUNG CELL CULTURE купить онлайн

    2 Answers

    • Oldest
    • Voted
    • Recent
    1. Gerda

      Gerda

      • 905 Questions
      • 2k Answers
      • 0 Best Answers
      • 25 Points
      View Profile
      Gerda
      2020-10-27T06:34:34+00:00Added an answer on Tháng Mười 27, 2020 at 6:34 sáng

      Đáp án:

       `a)x=-1`

      `b) x=2/3`

      Giải thích các bước giải:

       `a)2x(x-5)-x(3+2x)=13`

      `⇔2x^2-10x-3x-2x^2=13`

      `⇔-13x=13`

      `⇔x=-1`

      vậy `x=-1`

      `b) 9x^2-12x+4=0`

      `⇔(3x)^2-2.3x.2+2^2=0`

      `⇔(3x-2)^2=0`

      `⇔3x-2=0`

      `⇔x=2/3`

      vậy `x=2/3`

      • 0
      • Reply
      • Share
        Share
        • Share on Facebook
    2. Sapo

      Sapo

      • 911 Questions
      • 1k Answers
      • 0 Best Answers
      • 15 Points
      View Profile
      Sapo1
      2020-10-27T06:34:57+00:00Added an answer on Tháng Mười 27, 2020 at 6:34 sáng

      `a, 2x(x – 5) – x(3 + 2x) = 13`

      `↔ 2x^2 – 10x – 3x – 2x^2 – 13 = 0`

      `↔ -13x – 13 = 0`

      `↔ -13x = 13`

      `↔ x = -1`

      `b, 9x^2 – 12x + 4 = 0`

      `↔ (3x – 2)^2 = 0`

      `↔ 3x – 2 = 0`

      `↔ x = 2/3`

       

      • 0
      • Reply
      • Share
        Share
        • Share on Facebook
    Leave an answer

    Leave an answer
    Hủy

    Sidebar

    Footer

    Mọi thắc mắc liên quan nội dung, câu hỏi, câu trả lời hãy liên hệ chúng tôi qua email: ad.documen.tv@gmail.com . Xin cảm ơn.
    Contact me: ad.documen.tv@gmail.com . Thank you!