Matematika

Pertanyaan

Pls butuh sekarang..di bantu ya aku mohon
Pls butuh sekarang..di bantu ya aku mohon

1 Jawaban

  • 1.
    y = y
    x - 3 = x² - 4x + 3
    x² - 4x - x + 3 + 3 = 0
    x² - 5x + 6 = 0
    (x - 3)(x - 2) = 0

    x = 3 dan x = 2

    2.
    3x + 2 = x² + x - 10
    x² + x - 3x - 10 - 2
    x² - 2x - 12 = 0
    (x - 4,606)(x + 2,606) = 0
    x = 4,606 dan x = -2,606

    3.
    x² - 3x + 10 = -x² + x + 16
    x² + x² - 3x - x + 10 - 16 = 0
    2x² - 4x - 6 = 0
    x² - 2x - 3 = 0
    (x - 3)(x + 1) = 0

    x = 3 dan x = -1


    4.
    x² + 4x - 5 = -x² + 4x + 3
    x² + x² + 4x - 4x - 5 - 3 = 0
    2x² - 8 = 0
    x² - 4 = 0
    (x + 2)(x - 2) = 0

    x = -2 dan x = 2