Matematika

Pertanyaan

Jika a = 3 x + 2, B = -2x-5 ,c= 4 X-3 Tentukan nilai dari 4b-3C

2 Jawaban

  • 4b - 3c = 4(-2x-5) - 3(4x-3)
                = -8x - 20 -12x + 9
                = -8x - 12x - 20 + 9
                = -20x - 11
  • a = 3x + 2
    b = -2x - 5
    c = 4x - 3

    4b - 3c
    = 4(-2x - 5) - 3(4x - 3)
    = -8x - 20 - (12x - 9)
    = -8x - 20 - 12x + 9
    = -8x - 12x - 20 + 9
    = -20x - 11
    = -(20x + 11)

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