Matematika

Pertanyaan

Diketahui fungsi f(x)=2x+3 dan fungsi g(x)=3x²-2x+5 nilai (gof) (-2)=

2 Jawaban

  • Jawab
    fungsi

    f(x) = 2x + 3
    g(x) = 3x² -2x + 5

    gof (x) = 3(2x +3)² - 2(2x+ 3)+ 5
    gof (-2) =  3(-4+3)² - 2(-4+23 + 5
    gof (-2) = 3(1) - 2(-1)  + 5
    gof (-2) = 3 +2  + 5 = 10
  • fungsi

    f(x) = 2x + 3
    g(x) = 3x² -2x + 5

    gof (x) = 3(2x +3)² - 2(2x+ 3)+ 5
    gof (-2) =  3(-4+3)² - 2(-4+23 + 5
    gof (-2) = 3(1) - 2(-1)  + 5
    gof (-2) = 3 +2  + 5 = 10

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