Matematika

Pertanyaan

Tolong jawab ea ini penting sekali
Soal
+ 1/2m + 1/3m
+ 2(x-2)/x - 3(x-1)/x"
+ 3/4a . 4/5b
+ a+1/2a-6 : a"+3a+2/a-3
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1 Jawaban

  • 1/2m + 1/3m
    = (3m + 2m) / 6m²
    = 5m/6m²
    = 5/6m

    2(x - 2)/x - 3(x - 1)/x²
    = (2x(x - 2) - 3(x - 1))/x²
    = (2x² - 4x - 3x + 3)/x²
    = (2x² - 7x + 3)/x²

    3/4a . 4/5b = 12/20ab
    = 3/5ab

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

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