Matematika

Pertanyaan

g(x)=4x-6. (gof)(x)=4x^-8x+6. f(-2)= ?

1 Jawaban

  • g(f(x)) = 4x²-8x+6
    4(f(x)) - 6 = 4x²-8x+6
    4f(x) = 4x²-8x+6+6
    f(x) = 4x²-8x+12 / 4
    f(x) = x²-2x+3

    f(-2)=(-2)²-2(-2)-3
    =4+4-3
    =5

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