Matematika

Pertanyaan

1. 3/x+2 + 2/x-3
2. 4/x+3 - 5/x-1
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1 Jawaban

  • 1]
    3/(x+2) + 2/(x-3)
    = [3(x-3) + 2(x+2)]/(x+2)(x-3)
    = [3x-9+2x+4]/[x^2 - x - 6]
    = (5x-5)/(x^2 - x - 6)
    2]
    4/(x+3) - 5/(x-1)
    = [4(x-1)-5(x+3)]/(x+3)(x-1)
    = [4x-4-5x-15]/[x^2 + 2x -3]
    = (-x-19)/(x^2 + 2x - 3)


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