Matematika

Pertanyaan

jika f(x)=4x-12 maka f(5)-2 f(3)=

2 Jawaban

  • Kelas 8 Matematika
    Bab Fungsi

    f(x) = 4x - 12

    f(5) = 4 . 5 - 12
    f(5) = 20 - 12
    f(5) = 8

    f(3) = 4 . 3 - 12
    f(3) = 12 - 12
    f(3) = 0

    f(5) - 2 . f(3)
    = 8 - 2 . 0
    = 8 - 0
    = 8
  • f(x)=4x-12
    f(5)=4.5-12
    =8
    f(3)=4.3-12
    =0

    f(5)-2f(3)=8

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