Matematika

Pertanyaan

Y = 8-x-xkuadrat
Y = x+2

1 Jawaban

  • y = 8 - x - x²
    y = x + 2

    y = y
    8 - x - x² = x + 2
    x² + 2x - 6 = 0
    x² + 2x + 1 - 7 = 0
    (x + 1)² = 7
    x + 1 = ± √7
    x1.2 = -1 ± √7
    x1 = -1 + √7
    x2 = -1 - √7

    HP = {-1 + √7 , -1 - √7}

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