Matematika

Pertanyaan

Diketahui suku bayak f(x) = 2x4 – 3x2 + 5x-6 dan g(x) = 2x2-7x+10 tentukan
a. F(x)-g(x)
b. F(x)+g(x)
c. F(x)xg(x)

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2 Jawaban

  • a. f(x) - g(x) = (2×4 - 3×2 + 5x - 6) - (2×2 - 7x +10)
    = (8 - 6 + 5x - 6) - (4 - 7x + 10)
    = ( 8 - 6 - 6 - 4 + 10) - (5x - 7x)
    = (10) - (-2x)
    = 10 + 2x

    b. f(x) + g(x) = (8 - 6 + 5x - 6) + (4 - 7x +10)
    = ( 8 - 6 - 6 + 4 +10) + (5x -7x)
    = (10) + (-2x)
    = 10 - 2x

    c. f(x) × g(x) = ( 8 - 6 - 6 × 4 + 10) × (5x - 7x)
    = (-58) × (-2x)
    = 58 × 2x

    semoga membantu :)

  • a. f(x) - g(x) = (2×4 - 3×2 + 5x - 6) - (2×2 - 7x +10)
    = (8 - 6 + 5x - 6) - (4 - 7x + 10)
    = ( 8 - 6 - 6 - 4 + 10) - (5x - 7x) 
    = (10) - (-2x)
    = 10 + 2x

    b. f(x) + g(x) = (8 - 6 + 5x - 6) + (4 - 7x +10)
    = ( 8 - 6 - 6 + 4 +10) + (5x -7x)
    = (10) + (-2x)
    = 10 - 2x

    c. f(x) × g(x) = ( 8 - 6 - 6 × 4 + 10) × (5x - 7x) 
    = (-58) × (-2x)
    = 58 × 2x

    Semoga bermanfaat

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