Matematika

Pertanyaan

3-|4x-5| = -|5|
tolong bantu pake cara ya;((
3-|4x-5| = -|5| tolong bantu pake cara ya;((

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1 Jawaban

  • Soal
    3 - | 4x - 5 | = - | 5 |
    》3 - | 4x - 5 | = - 5
    》- | 4x - 5 | = - 8
    》| 4x - 5 | = 8

    • 4x - 5 = 8
    》4x = 8 + 5 , 4x - 5 > 0
    》4x = 13
    》 x = 13/4

    • 4x - 5 = - 8
    》4x = - 8 + 5 , 4x - 5 < 0
    》4x = - 3
    》x = -3/4

    (Jawaban : x1= 13/4 , x2= -3/4)

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