Matematika

Pertanyaan

himpunan penyelesaian dari |2x-1|=x+3

2 Jawaban

  • ==Jawaban==

    |2x-1|=x+3

    2x - 1 = x + 3
    2x - x = 3 + 1
    x = 4

    2x - 1 = -(x + 3)
    2x - 1 = -x - 3
    2x + x = -3 + 1
    3x = -2
    x = -2/3

    Hp = {-2/3, 4}
  • |2x - 1| = x + 3

    (i)
    2x - 1 = x + 3
    2x - x = 3 + 1
    x = 4

    (ii)
    2x - 1 = -x - 3
    2x + x = -3 + 1
    3x = -2
    x = -2/3

    HP = {-2/3 , 4}

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