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dangina [55]
3 years ago
13

Frações Algébricas - 3* caso

D" id="TexFormula1" title="\frac{x+1}{2x-4} + \frac{x-1}{3x-6}" alt="\frac{x+1}{2x-4} + \frac{x-1}{3x-6}" align="absmiddle" class="latex-formula">
Mathematics
1 answer:
Ulleksa [173]3 years ago
4 0

Answer:

\dfrac{5x + 1}{6(x - 2)}

\dfrac{5x + 1}{6x - 12}

Step-by-step explanation:

Fatorizam-se os denominadores.

2x - 4 = 2(x - 2)

3x - 6 = 3(x - 2)

O minimo multiplo comum dos denominadores e

2(3)(x - 2)

\dfrac{x + 1}{2x - 4} + \dfrac{x - 1}{3x - 6} =

= \dfrac{3(x + 1)}{2(3)(x - 2)} + \dfrac{2(x - 1)}{2(3)(x - 2)}

= \dfrac{3(x + 1) + 2(x - 1)}{6(x - 2)}

= \dfrac{3x + 3 + 2x - 2)}{6(x - 2)}

= \dfrac{5x + 1}{6(x - 2)}

= \dfrac{5x + 1}{6x - 12}

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