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Pertanyaan

Penyelesaian dari 2 lo g ( x − 3 ) + 2 lo g ( x + 3 ) ≥ 4 adalah ....

Penyelesaian dari adalah ....

  1. x greater or equal than 5

  2. x greater or equal than 3

  3. negative 3 less than x less than 3

  4. negative 3 less than x less or equal than 5

  5. 3 less or equal than x less than 5

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A. Rizky

Master Teacher

Mahasiswa/Alumni Universitas Negeri Malang

Jawaban terverifikasi

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Pembahasan

begin mathsize 14px style log presuperscript 2 open parentheses straight x minus 3 close parentheses plus log presuperscript 2 open parentheses straight x plus 3 close parentheses greater or equal than 4  log presuperscript 2 open parentheses straight x minus 3 close parentheses open parentheses straight x plus 3 close parentheses greater or equal than log presuperscript 2 space 2 to the power of 4  open parentheses straight x minus 3 close parentheses open parentheses straight x plus 3 close parentheses greater or equal than 16  straight x squared minus 9 minus 16 greater or equal than 0  straight x squared minus 25 greater or equal than 0  open parentheses straight x minus 5 close parentheses open parentheses straight x plus 5 close parentheses greater or equal than 0  open curly brackets straight x less or equal than negative 5 space atau space straight x greater or equal than 5 close curly brackets    Syarat space numerus space colon  straight x minus 3 greater than 0  straight x greater than 3    straight x plus 3 greater than 0  straight x greater than negative 3    Irisan space ketiga space himpunan space penyelesaian space adalah  end style

begin mathsize 14px style Hp space equals open curly brackets straight x greater or equal than 5 close curly brackets end style

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Penyelesaian pertidaksamaan log (x- 4) + log(x + 8) < log (2x + 16) adalah ....

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