Matematika

Pertanyaan

nilai X =

tolong dijawab yaaa
nilai X = tolong dijawab yaaa

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1 Jawaban

  • Logaritma.

    9log (x^2+2x) = 9log 3
    x^2 + 2x = 3
    x^2+ 2x - 3 = 9
    (x +3)(x-1) = 0
    x=1 V x= -3

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