Matematika

Pertanyaan

nilai mutlak dari |5-2×|=1

2 Jawaban

  • |5-2x|=1
    (√(5-2x)²)²=(1)²
    (5-2x)²=(1)²
    (5-2x)²-(1)²=0
    (5-2x-1)(5-2x+1)=0
    (4-2x)(6-2x)=0
    *4-2x=0
    -2x=-4
    2x=4
    x=4/2
    x=2
    *6-2x=0
    -2x=-6
    2x=6
    x=6/2
    x=3
    hp={2,3}
  • Bab Nilai Mutlak
    Matematika SMA Kelas X

    |5 - 2x| = 1

    (5 - 2x)² = 1²
    (5 - 2x)² - 1² = 0
    (5 - 2x + 1) (5 - 2x - 1) = 0
    (6 - 2x) (4 - 2x) = 0
    6 - 2x = 0    atau    4 - 2x = 0
    6 = 2x                    4 = 2x
    x = 6/2                   x = 4/2
    x = 3                      x = 2

    HP = { 2, 3 }

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