Matematika

Pertanyaan

f(x) = 2x + 2
f(a + 3) = ?
a = ?

2 Jawaban

  • Materi : Fungsi

    f(x) = 2x + 2

    f(a + 3) = 2(a + 3) + 2
    f(a + 3) = 2a + 6 + 2
    f(a + 3) = 2a + 8

    a + 3 = 2a + 8
    a - 2a = 8 - 3
    -a = 5
    a = -5
  • 》f(a + 3) = 2(a + 3) + 2
    》f(a + 3) = 2a + 6 + 2
    》f(a + 3) = 2a + 8

    》a + 3 = 2a + 8
    》a - 2a = 8 - 3
    》-a = 5
    》 = -5

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